• 100% Satisfaction Guarantee

Math-John, PhD in Statistics
Category: Math Homework
Satisfied Customers: 1291
Experience:  MS and BS in Math
Type Your Math Homework Question Here...
Math-John is online now

# approx. 32 questions. no time limit.

### Resolved Question:

approx. 32 questions. no time limit.
Submitted: 1 year ago.
Category: Math Homework
Expert:  Math-John replied 1 year ago.
Thank you for the request. I am ready.
Customer: replied 1 year ago.
determine the area under the standard normal curve that lies to the left of
(a) z= -1.24, (b) z=1.52, (c) z=1.09, and (d) z=-0.45.

(a) the area to the left of z= -1.24 is
(round to four decimal places as needed.)
Expert:  Math-John replied 1 year ago.
(a) z= -1.24, (b) z=1.52, (c) z=1.09, and (d) z=-0.45.

The table gives results to 4 decimal places. Please let me know if you need results in different number of decimal places.

(a) 0.1075, (b) 0.9357, (c) 0.8621, (d) 0.3264.
Customer: replied 1 year ago.
determine the area under the standard normal curve that lies to the left of
(a) z= -1.32, (b) z=-0.85, (c) z=-1.38, and (d) z=1.01.

(a)the area to the left of z=-1.32 is
(round to four decimal places as needed)
Expert:  Math-John replied 1 year ago.
(a) "0.0934",
(b) "0.1977"
(c) "0.0838"
(d) "0.8438"
Customer: replied 1 year ago.
determine the area under the standard normal curve that lies to the right of
(a) z= -1.66, (b) z=1.54, (c) z=1.79, and (d) z=-1.58.

(a)the area to the right of z=-1.66 is
(round to four decimal places as needed)
Expert:  Math-John replied 1 year ago.
"0.0485" "0.9382" "0.9633" "0.0571"
Customer: replied 1 year ago.
to find the area to the right of z, use a standard normal distribution table to find the area to the left of z. the area to the right of z is 1 minus the area to the left of z. you can also use technology to find the area.
Expert:  Math-John replied 1 year ago.

Sorry I did to the left. The answer is

"0.9515" "0.0618" "0.0367" "0.9429"

Customer: replied 1 year ago.
determine the area under the standard normal curve that lies between
(a) z= -0.66 and z=0.66 (b) z=-0.97 and z=0, (c) z=-1.81, and z=-0.08.

(a)the area that lies between z=-0.66 and z=0.66 is
(round to four decimal places as needed)
Expert:  Math-John replied 1 year ago.
" 0.4907" "-0.3340" "-0.4330"
Customer: replied 1 year ago.
determine the percent of data greater than z=-2.10.

the percent of data greater than z= -2.10 is ___%.
(type an integer or decimal rounded to two decimal places as needed.)
Expert:  Math-John replied 1 year ago.
98.21
Customer: replied 1 year ago.
a company has test a new cellular battery. the mean number of hours that a newly charged battery remains charged is 45 hours , with a standard deviation of 5 hours.

What is the percent of batterieds that will remain charged less than 55 hours?

Rount to two decimal places as needed.
Expert:  Math-John replied 1 year ago.
97.72
Customer: replied 1 year ago.
assume that the heights of females in a certain village are normally distributed with a mean of 65 in. and standard deviation of 3 in. What % of these females are between 56 in. and 62 in. tall?

the percent of these females between 56 in and 62 in tall is
(round to two decimal places as needed.)
Expert:  Math-John replied 1 year ago.
15.73
Customer: replied 1 year ago.
identify the area under the standard normal curve that corresponds to the desired part of the population. then use the standard normal table to find the area and convert it to a percentage.
Expert:  Math-John replied 1 year ago.
I used a software since in a previous problem it says "use technology" but if the normal table is used the answer is 15.74. I will use the table from now on.
Customer: replied 1 year ago.
assume that the speed of autobmobiles on an expressway during rush hour is normally distributed with a mean of 63 mph and a standard deviation of 10 mph. What percent of cars are traveling faster than 80 mph?

type an integer or a decimal rounded to two decimal places as needed.
Expert:  Math-John replied 1 year ago.
4.46
Customer: replied 1 year ago.
The wearout mileage of a certain tire is normally distributed with a mean of 38000 miles and standard deviation of 2400 miles.

if the manufacturer guarantees the tires to last at least 35600 miles, what percent of the tires will live upu to the guarantee?

% round to 2 decimal places as needed
Expert:  Math-John replied 1 year ago.
84.13
Customer: replied 1 year ago.
the warranty on a car battery is 36 months. if the breakdown times of this battery are normally distributed with a mean of 50 months and a standard deviation of 10 months, determin the percent of batteries that can be expected to require repair or replacement under warranty.
Expert:  Math-John replied 1 year ago.
8.08
Customer: replied 1 year ago.

A B A B

P= A[ 0.8 0.2 ] and the initial –state of matrix S0=[ 1 0 ]

B 0.7 0.3

Find S1 and interpret with the aid of a tree diagram.

S1= [ ___ ____ ]round to two decimal places

Expert:  Math-John replied 1 year ago.
0.8 0.2
Customer: replied 1 year ago.
fill in the values for the tree diagram

state 0 state 1

the probability of transition from Ao to A1 is.
the probability of transition from Ao to B1 is.
the probability of transition from Bo to A1 is.
the probability of transition from Bo to B1 is.
Expert:  Math-John replied 1 year ago.
0.8, 0.2, 0.7, 0.3
Customer: replied 1 year ago.

A B A B

P= A[ 0.2 0.8] and the initial –state of matrix S0=[ 0.6 0.4 ]

B 0.2 0.8

Find S2’and explain what it represents

S2= [ ___ ____ ]round to three decimal places

Expert:  Math-John replied 1 year ago.
0.2 0.8
Customer: replied 1 year ago.
complete the transition diagram and write the corresponding transition martix.

enter the missing probabilities for the transition diagram.

the probability of transition from A to B is
the probability of transition from B to B is.
Expert:  Math-John replied 1 year ago.
0.1 0.8
Customer: replied 1 year ago.
write the corresponding transition matrix
A B
P= A ___ ___
B ____ ____
Expert:  Math-John replied 1 year ago.
0.9 0.1
0.2 0.8
Customer: replied 1 year ago.

A B
P=A ____ ___
B _____ ___
Expert:  Math-John replied 1 year ago.
0.9 0.1
0.7 0.3
Customer: replied 1 year ago.

A B
P= A[ 0.2 0.8] ; So = [ 0.7 0.3 ]
B 0.6 0.4

P4 = [ ___ ___ ]
___ ____
Expert:  Math-John replied 1 year ago.

0.4432 0.5568

0.4176 0.5824

Customer: replied 1 year ago.
S4= [ ___ ___ ]
Expert:  Math-John replied 1 year ago.
0.4355 0.5645
Customer: replied 1 year ago.
several elements are incorrect. round to five decimal places
Expert:  Math-John replied 1 year ago.
Sorry I didn't know you need 5 decimal places.

S4 = 0.43552 0.56448
Expert:  Math-John replied 1 year ago.
Hi, any more questions?
Expert:  Math-John replied 1 year ago.
Hi, please let me know if we are done. Thanks.Math-John41037.4168133912
Customer: replied 1 year ago.
Sorry I had a busy week send me an accept answer and I will pay you for this.
Expert:  Math-John replied 1 year ago.
No problem. Thank you for accepting and let me know if I can help you.Math-John41041.5134518866
Math-John, PhD in Statistics
Category: Math Homework
Satisfied Customers: 1291
Experience: MS and BS in Math

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

### What Customers are Saying:

• Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
< Last | Next >
• Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
• This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
• Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
• I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
• Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
• Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
• He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here. Diane Dallas, TX

• ### Mr. Gregory White

#### Satisfied Customers:

84
M.A., M.S. Education / Educational Administration
< Last | Next >

### Mr. Gregory White

#### Satisfied Customers:

84

M.A., M.S. Education / Educational Administration

### JACUSTOMER-yrynbdjl-

#### Satisfied Customers:

49

I have taught college Mathematics for the past 10 years.

### Ray Atkinson

#### Satisfied Customers:

43

Grad student. Years and years of tutoring. Education, accounting, and math degrees.

### SusanAthena

#### Satisfied Customers:

29

Tutor for Algebra, Geometry, Statistics. Explaining math in plain English.

### mhasan420

#### Satisfied Customers:

29

BA Maths, Oxford

### Dr Arthur Rubin

#### Satisfied Customers:

26

Ph.D. in Mathematics, California Institute of Technology