If the sum of the squares of five numbers is 165 and their variance is 8. What is the mean of the numbers? a. 3 b. 4 c. 5 d 5

Q: Al gave correct answers to 47 of the 50 questions on the driving test . What percentage of the…

A: We can give the correct answer in the below st

Q: In a UQDS (representing a population) of size 12, if the sum of all observations is 72 and the sum…

A: Solution: Let X be the random variable. From the given information,

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Q: A restaurant server claims that 49% of the time he leaves candy with the bill, the customer "tips…

A: Given : n = 5 p = 0.49

Q: Mark and Don are planning to sell each of their marble collections at a garage sale. If Don has 3…

A: Let Mark has x number of marble Given that Don has 3 more than 4 times the marble Mark has.…

Q: If the mean of five values is 10.2 and four of the values are 14, 6, 8, and 11, find the fifth…

A: Solution-: Given data (xi): 14,6,8,11,x Mean=10.2 We want to find fifth value (x) =?

Q: Yosef bought an assortment of socks. 5/7 of the socks were orange. 1/4 of the remaining socks were…

A: Fraction:  It is a small  part of  something or, In other words, a numerical value  that is not a…

Q: Find the variance of the data

A: a) given data : -3,-2,-1,0,1,2,3,4

Q: The mean of a set of data is the sum of all values in a data set divided by the number .of values in…

A: GivenMean:-It is the one of the measures of central tendencyMean(x) of a set observations is defined…

Q: What percentage of worldwide Internet users doAmericans represent?a. 4b. 78c. 10d. 15e. 25

A: There are nearly 2.4 billion worldwide internet users.

Q: 2 1 4 0.5 1

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Q: Here are the fuel efficiencies (in mpg) of 8 new cars. 45, 20, 45, 14, 34, 22, 18, 28 What is the…

A: Given information- We have given the data of the fuel efficiencies of 8 new cars (arranged in…

Q: A survey of 150 people revealed that 115 people like ketchup on their hot dogs, 85 people like…

A: Concept of General Addition Rule: For any two events A and B the General Addition Rule state that:

Q: Between what two numbers do the middle half of the responses fall? ||||| 40 45 50 55 60 65 70 75 80…

A: We are given a boxplot that summarizes the responses. We have to find  between what two numbers do…

Q: Simplify. A a³b¹s ab ¹0 B C 7a²bis 39% D None of the above 5a¹b15a²b-3 7a²b 49ab⁹

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Q: 19 miles, Beth ran 4 45 miles, and Staci ran 4 mniles. Which list 4. On Saturday, Louise ran shows…

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Q: a lanna's health class measures the heart rates of students after they walked for five minutes. The…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: If a toss a coin twice are you certain to get one head and one tail?   If you toss a coin 100 time…

A: The question is asking about the probability of getting a certain outcome when tossing a coin. In…

Q: Follow -up Questions: 1. What will happen to the sample size if the percentage error becomes lower…

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Q: 17. Sharon made 85, 84, 89, 90, and 77 on her five math quizzes this six weeks. What is the median…

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Q: If a coin is flipped 150 times and the number of Hs is 25. Compute the proportion of Hs. Round to…

A: We have given that,  Favorable cases (X) = 25 and sample size (n) = 150 Then,  We will find the…

Q: In a crop of blueberries, there will be an average of 6500 berries with stdev = 318 %3D berries. The…

A: Given : Mean , μ= 6500 standard deviation, σ = 318

Q: Shelly and Kelly Macdonald met up with Sarah and Tara MacNeill to go fishing in Cape Breton. They…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: A proportion .40 of the tagged birds were recovered. 150 were tagged in all. How many were…

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Q: If five out of every sixteen students prefer to write with pens over pencils, what proportion of…

A: Given that, five out of every sixteen students prefer to write with pens over pencils.The aim is to…

Q: The number of letters received in the mail over the past week is re 5 15 Which value appears to be…

A: Explanation and solutions is given below....

Q: please solve : B, C, and D     ch 9

A: A hypothesis which is tested against plausible rejection is called the Null Hypothesis (typically…

Q: Rebecca works at a research lab. Her summer intern John has asked for help in determining the sample…

A: The variance of the sample in the academic report is 144 and .

Q: In a married couple, the husband and wife are both 5 feet, 4 inches (64 inches) tall. Which person…

A: Given, In a married couple, the husband and wife are both 5 feet, 4 inches (64 inches) tall.   The…

Q: Erin is married to Glen Mills. Erin earns an income of 500 and Glen earns an income of 400. Glen and…

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Q: In a statistics activity, students are asked to spin a penny and a dime and determine the proportion…

A: Please see the attachment.......

Q: The average of 7 consecutive even integers is 20. What is the median

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Q: if the mean of five values is 8.8 and four of the values are 7, 13, 6, and 9 find the fifth value.

A: given data , mean of the five values =8.8n=5x¯=8.8we have to find out the 5th observation for the…

Q: 7.) Kayla recently took a multiple-choice quiz in social studies class. Her ratio of correct answers…

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Q: A farmer grows watermelons and cantaloupes. Let X represent the weight of a watermelon, and let Y…

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Q: Scores on a test have a mean of 66 and a standard diviation of 9. Michelle has a score of 57.…

A: Given,          Mean μ=66          Standard deviationσ=9          Michelle has a score X=57

Q: Which equation represents the data in the table? 4. 100 25 6.25 1.5625 y= 100(금)" ов. y = 400(금)" O…

A: Equations