Scores smallest place value are hundredths, - The range is 72, - It has been decided to use 7 intervals. What is the interval or class width to be used?

Q: Micky needs to earn at least a 2.5 in the class to keep a scholarship. What is the lowest percentage…

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Q: Cell Phones: In a survey of 2,532 teenagers, 68% said that they spend 10 to 12 hours a week on…

A: 9. It is given that, Total teenagers surveyed are 2532. Note that, margin of error is ±1n×100%,…

Q: find the weighted average. 3 test scores were 75, 5 test scores were 88 and 2 test scores were 90.

A: Given,3 test scores were 755 test scores were 882 test score were 90

Q: survey samples 500 people. What is the margin of error for the survey? Round to two places.

A: Given P=0.5 Significance level=0.05 N=500

Q: For a school field trip 237 students traveled in four busses and one minibus which had 17 students…

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Q: How many​ 10-digit phone numbers are​ possible?

A: To find the possible no. of 10-digit phone numbers.

Q: Find the pooled estimate for 21 = 54, x2 = 51, n1 = 186 and n2 = 181. Round your answer to the…

A: Given; x1=54x2=51n1=186n2=181 Pooled estimate for proportion is given as- p¯=x1+x2n1+n2

Q: Find the median: 62, 37, 78, 88, 81, 34, 40 Median: ??

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Q: 103 students at a college were asked whether they had completed their required English 101 course,…

A: It is given that, 103 students at a college were asked whether they had completed their required…

Q: We have 39 balls in the box, you choose 5 random balls. What is the percentage that 4 of them are…

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Q: A city has 8 different zip codes. Does it make sense to find the mean of these zip codes? Explain

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Q: What is the average of  2.0, 32.0, 44.0, 14.5, 7.5 ?

A: For a set of n observations, x1, x2, ... , xn, mean or average is given by, This is measure of…

Q: d. In how many classes were 2 students absent? 0 e. How many times were no more than 2 students…

A: number absents number of classes 0 3 1 3 2 5 3 8 4 5 5 3 6 3

Q: Evaluate dpois(10,3.95)

A: The dpois(x,lambda) is R-function. This evaluates the probability mass function of poisson…

Q: A telecommunications company conducted a survey about cell phone companies. Of the 1800 randomly and…

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Q: Find the number of different selections of 4 letters from the word STATISTICS.

A: "STATISTICS" No.of letters in the word " STATISTICS " =10

Q: A campus deli serves 350 customers over its busy lunch period from 11:30 am to 1:30 pm. A quick…

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Q: Xylem Park hosts many expos to teach the public about plants. Last year's desert plant expo featured…

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Q: Find the 5 number summary for the number of questions correct on a quiz. score 4.1 19.5 20.5 24.1…

A: Please see the below picture for detailed solution.

Q: In a survey of 114 pet owners, 70 said they own a dog, and 15 said they own a cat. 11 said they own…

A: Given Information: In a survey of 114 pet owners. 70 said they own a dog 15 said they own a cat 11…

Q: the sensitivity

A: 93(a=7), 92(a=8) It seems that it's not coherent  Or not coherent formula

Q: competed in an ironman race, J

A: Here it is given that - 3500 people competed in an ironman race, John finished 805th,

Q: How many ways can first and second ?place be awarded to 9 racers

A: The possible arrangement of n things is calculated for r times using permutation with replacement.…

Q: Among the 2302 respondents, 56 said they have more than five tattoos. What percentage of respondents…

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Q: The United States Environmental Protection Agency6 reports that in 2006, each American generated 4.6…

A: The United States Environmental Protection Agency reports that in 2006, each American generated 4.6…

Q: How to Choose the Best Lot Size? explain with example?

A: Lot size is the item quantity that has made or purchased or the quantity of an item ordered for…

Q: 33% prefer aisle seat

A: The confidence interval = 95%Margin of error [E] = 2.5%

Q: 20% of the girls in class have blonde hair. 16 girls do not have blonde hair. How many total…

A: NOTE- AS we are allowed to answer one question in one session so, i have answere dfirst one for you…

Q: Find the probability of drawing three hearts in a row from a standard deck of 52 cards if the drawn…

A: Find the probability of drawing three hearts in a row from a standard deck of 52 cards if the…

Q: Find the number of classes if the number of observation is 190.

A: Given: Number of observations, N=190 We need to determine the number of classes. Concept: Sturges…

Q: den Modal marks for a grouk ni 94 students are 54. Ten students got marks between 0-

A:

Q: enchmark Assessment - 9/39 A burrito was cut into 6 equal pieces. If Carmen ate of the burrito, and…

A: The objective is to determine how many whole pieces of the burrito are left

Q: 7 is even and 7 is prime. describe the proportion as navigation, disjunction, conjunction, or…

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Q: Find the median: 68, 81, 72, 104, 28, 100, 66 Median

A: arrange data in accending order 28,66,68,72,81,100,104 sample size n = 7