Previous Question Assume the amount of time it takes to complete an exam is described by the following distributio er following questions: 70 75 80 85 90 95 100 ..... Enter integers for all of the following. i) The mean time to complete the exam is equal to minutes. ii) The standard deviation of time to complete the exam is equal to minutes. 14. Approximately 68% of the students will take between to minutes to complete the exam. 15. Approximately percent of the students will complete the exam in less than 80 minutes.

Q: Five students find the following number of pencils in their backpacks: 3, 1, 4, 3, 15. Find and…

A:

Q: Which of the following statements regarding the widths of bars in a histogram is true? O a. Widths…

A: Number of bins are the interval that contains a particular range of data within that interval.

Q: c) The amount of sodium sulfate, in mg, found in the bottled water follows a normal distribution…

A: We have given that Mean(µ) = 13Standard deviations (σ) = 2.5X ~ N (µ, σ )= N (13,2.5)

Q: The mean of the values 2, 3, 4, 6, 9, 10, rounded appropriately, is: Oa8.67 Ob 8.666666667 0087 Od…

A: Given data is2,3,4,6,9,10

Q: The SAT Verbal Test in recent years followed approximately a normal distribution with a mean of 460…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Solve using R Caculator The average hourly wage for manufacturing workers in the United States is…

A: The data on the hourly wages of manufacturing workers is provided.The given data has a normal…

Q: State the standard deviation of the numbers of taxi passengers to the nearest decimal place. 3 4…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: What does the z-score of a data point tell us? O How many standard deviation a number is from the…

A: Here we have to identify the correct statement

Q: The coefficient of variation CV describes the standard deviation as a percent of the mean. Because…

A:

Q: Españ A biologist is studying rainbow trout that live in a certain river and she estimates their…

A:

Q: tatistics  1. Use the table below to compute the standard deviation of the following numbers:8, 10,…

A: Given data: 8, 10, 12, 16, 19

Q: Discussion: Students will measure the height of their 5 friends in inches and calculate the mean and…

A: The student will measure the height of n=5 friends. The sample size is n=5. Need to compute: The…

Q: An archer can either hit or miss his target. The probability of hitting a target is 70.0% . Suppose,…

A: A random variable follows the binomial distribution if it satisfies the following conditions. The…

Q: Find the mean and standard deviation for the individualized instruction scores.

A:

Q: "The central 50% of employees work between 12.5 hours of overtime." C. and

A: Using the given data Find ( c ) The central 50% of employees work between  ? and ? hours of…

Q: The average height of 30 boys was calculated to be 150 cm. It was detected later that one value of…

A: Given that the average height of 30 boys was 150 cm. That is,

Q: Cme that 3 out of 2500 babies were born with kidne the year before the accident. Also assume that 11…

A: Consider, X be the random variable that represents the number of coffee cups that customer drinks…

Q: __ is a measure of speed and describes the difference between the mean and random variable?   a.…

A: In this case, one needs to fill the suitable answer.

Q: Find the range for the set of data given. 70 142 38 101 190

A: Here the given data is 70, 142, 38, 101, 190 The range of data is R=gratest number- lowetst number…

Q: Measure of variation is. median varance mode All

A: Measure of variation is which measures the spread of distribution such as range and variance…

Q: Reading Improvement Program To help students improve the is to be administered to the bottom 6% of…

A: Given Information: Mean μ=124.4 Standard deviation σ=23 Reading program is to be administered to the…

Q: State whether the z score locates the raw score X within a sample, or within a population. For every…

A: Note: According to bartleby experts question answers guidelines an expert can solve only first three…

Q: 3. A website captures information about each customer's order. The total dollar amounts of the last…

A: Obtain the value of the mean absolute deviation.   Use EXCEL Procedure for finding the value of mean…

Q: There is a weekend fishing competition that Laura participates in each year. There are several other…

A: given data, laura caught 37 fish at the competition this year ,μ=45σ=13we have to find out the z…

Q: The data below are the frequency of cremation burials found in 17 archaeological sites. a. Obtain…

A:

Q: multiple appropriate equations or symbols. The first table consists of altermative ways of referring…

A: Solution: N Population size n= sample size SS  = Sum of square deviation σ2=SSN Population variance…

Q: 10. The mean of this survey is 26.2 and the standard deviation is 8.7. There are 250 pieces of data.…

A: Given mean of survey is 26.2 and standard deviation is 8.7 The below number line represents the…

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Let X denote the IQ scores and it follows normal distribution with  mean of μ=100 and standard…

Q: The standard deviation of the following data set is: 2,5,9, 7 O 5.57 O 2.99 O 7.07 O 8.92

A: #Given, data  set      2,5,9,7   Now  mean x=2+5+9+74=234=5.75

Q: Which set of scores has the smallest standard deviation?​ Group of answer choices a. ​5, 11, 42, 22…

A: a)Given data set is 5,11,42,22

Q: 1. Given: Find: mean, median, mode, Q3, D1, P40, S Scores 95-99 10 90-94 20 85-89 25 80-84 28 75-79…

A:

Q: Find the population mean or sample mean Sample: 18, 10, 1, 12, 14 D Select the correct choice below…

A: The sample data is given as, 18,10,1,12,14. For the sample data the sample mean needs to calculated.…

Q: Directions: Fill in the blanks to complete the following statements. Choose your answer from the…

A: 1) Mean is obtained by getting the sum of all scores divided by the total frequency. 2) Whenever…

Q: Using the short cut formula we learned in class, find the standard deviation of the following list…

A:

Q: Statement: I will consider visiting the same destination for my next tour. Using a Likert-5 scale,…

A: The average chances of visiting the same destination for my next tour is 20.02.

Q: We've plotted our data on a numb er line in a way intended to show clearly that the 4 appears twice…

A: Note :Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question…

Q: Find the range and the standard deviation (correct to two decimal places). 81, 91, 96, 96, 96 a)…

A: From the given information we find the range and standard deviation.