Calculus and Above

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5.1 1-3 Question 2, options: P(exactly 57 girls)/P(57 or
5.1 1-3 Question 2, options: P(exactly 57 girls)/P(57 or more girls) Is/is not Equal to/ greater than/ less than… read more
Kofi
PhD in Statistics
Ph.D.
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Assume that when adults with smartphones are randomly​
Assume that when adults with smartphones are randomly​ selected, ​42% use them in meetings or classes. If 13 adult smartphone users are randomly​ selected, find the probability that fewer than 5 of th… read more
rajeevanpillai
Master's Degree
687 satisfied customers
The accompanying table describes results from groups of 8
The accompanying table describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Complete parts​ (a) through​ (… read more
Kofi
PhD in Statistics
Ph.D.
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A recent study reported that ​% of the residents of a
A recent study reported that ​% of the residents of a particular community lived in poverty. Suppose a random sample of residents of this community is taken. We wish to determine the probability that … read more
Scott
Master's Degree
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Seven of the 50 digital video recorders​ (DVRs) in an
Seven of the 50 digital video recorders​ (DVRs) in an inventory are known to be defective. What is the probability that a randomly selected item is​ defective?second part Assume that 2400 births are r… read more
rajeevanpillai
Master's Degree
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Assume that different groups of couples use a particular
Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. This method is designed to increase the likelihood that each baby will be a… read more
Kimberley Wright
Masters
284 satisfied customers
Assume that different groups of couples use a particular
Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. This method is designed to increase the likelihood that each baby will be a… read more
Kimberley Wright
Masters
284 satisfied customers
Assume that hybridization experiments are conducted with
Assume that hybridization experiments are conducted with peas having the property that for​ offspring, there is a 0.75 probability that a pea has green pods. Assume that the offspring peas are randoml… read more
Kimberley Wright
Masters
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When two births are randomly​ selected, the sample space for
When two births are randomly​ selected, the sample space for genders is​ bb, bg,​ gb, and gg. Assume that those four outcomes are equally likely. Construct a table that describes the sampling distribu… read more
rajeevanpillai
Master's Degree
687 satisfied customers
Find the standard​ deviation, s, of sample data summarized
Find the standard​ deviation, s, of sample data summarized in the frequency distribution table below by using the formula​ below, where x represents the class​ midpoint, f represents the class​ freque… read more
MunishK
Assistant Professor
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According to a survey in a​ country, 38​% of adults do not
According to a survey in a​ country, 38​% of adults do not own a credit card. Suppose a simple random sample of 600 adults is obtained. Complete parts​ (a) through​ (d) below. ​(a) Describe the sampli… read more
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According to a survey in a​ country, 17​% of adults do not
Neo
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Exit polling is a popular technique used to determine the
Exit polling is a popular technique used to determine the outcome of an election prior to results being tallied. Suppose a referendum to increase funding for education is on the ballot in a large town… read more
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Use normal approximation to estimate the probability of
Use normal approximation to estimate the probability of getting at least 55 girls in 100 births. Assume that boys and girls are equally likely.… read more
Sandhya_sharma
Master's Degree
Master's Degree
5,309 satisfied customers
A psychologist obtains a random sample of 20 mothers in the
A psychologist obtains a random sample of 20 mothers in the first trimester of their pregnancy. The mothers are asked to play Mozart in the house at least 30 minutes each day until they give birth. Af… read more
GLENN GILONGOS
Master of Mathematics
637 satisfied customers
Find range, variance & standard deviation for sample data
I have 6 questions and i can only post them after you answer each questions because each question is divided to multiple questions. Listed below are the top 10 annual salaries​ (in millions of​ dollar… read more
GLENN GILONGOS
Master of Mathematics
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What are hypotheses for the engineer in charge of water rationing?
1) An engineer in charge of water rationing for the U.S. Army wants to determine if the average male soldier spends less time in the shower than the average female soldier. Let μm represent the averag… read more
Stevewh
Teacher
Bachelor's Degree
6,427 satisfied customers
(3) An analyst processes one item every 30 minutes, so 16 items
(3) An analyst processes one item every 30 minutes, so 16 items are completed in her first day of work. Her manager checks her work by randomly selecting an hour of the day, then reviewing all the ite… read more
JACUSTOMER-yrynbdjl-
Master's Degree
42 satisfied customers
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