QUESTION 4 Below are results from some survey. The values are 34,23,42,37,38,23 and 33. (a) Find the mean. (b) Calculate the standard deviation.

Q: question 6 The data below is the total carbs in a sample of different brands of granola bars. Find…

A: The data shows the total carbs in a sample of different brands of granola bars.

Q: Question 14 The table below shows the midterm and final exam grades of ten students. 68 78 92 90 88…

A: We use statistics to complete this example.

Q: Question 2 Below is a sample of five students' weights (in Kilograms) who are considered obese at…

A:

Q: Question 4 After some time has passed, all of the chickens lay full-sized eggs. (When chickens first…

A: A normal distribution is a continuous probability distribution that makes a bell-shaped curve of the…

Q: Question 5. (CHILDHOOD NEVER COMES BACK) Bubba bought a bubble blower machine which produced 3125…

A: Question 5. The symmetric bell shaped curve is, The proportion of bubbles have age more than 17…

Q: QUESTION 30 Bill scored 35 on a college algebra exam, where the mean was 25 and the Standard…

A: Step by step explanation is given below:

Q: What is the chance the randomly selected obese adult male DSH cat has a weight of more than 23…

A: According to ongoing clinical research into feline health, the weight of an obese adult male…

Q: Question 2: - Find the standard deviation for the following data: - (8 MARK) 4,6,10,12,18 Your…

A: Given : Data : 1. 4 , 6 , 10 , 12 , 18 2. Marks obtained No. of students 10-20 2 20-30 3…

Q: Question 7 Calculate the standard deviation of the data shown, to two decim 5.8 224 29.7 26.5 28.4

A: The formula of sample standard deviation is,

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: 22 Obtain the standard z-score for X equals 90. The standard z-score for X equals 90 is obtained…

Q: The lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation…

A: (a)  The probability of a pregnancy lasting 309 days or longer is 0.0038, which is obtained below:…

Q: The ages of the university students are normally distributed with mean 22.5 and standard deviation…

A: Given, Mean = 22.5 Standard deviation = 2.3 population size = 3400

Q: Question 10 Determine the standard deviation of the prices of the 100 cars sold by the auto dealer…

A: When data is given by a set containing the data points, then it is termed as raw data. To analysis…

Q: Question # 3 The monthly salary of five (5) pharmaceutical company employees was as follows for…

A: Given, monthly salary of 5 pharmaceutical company employee. Given, monthly salary of 5…

Q: For the data shown, answer the questions. Round to 4 decimal places where possible. x 17.8 16.6…

A:

Q: Question 10 Refer to the accompanying​ table, which describes the number of adults in groups of…

A: Mean is the measures of central tendency and standard deviation is the measures of dispersion.

Q: Problem 7 :The golf scores for a school team were normally distributed with a mean of 68 and a…

A: Given,   Mean = 68 Standard deviation = 3   The objective is to find the probability that a golfer…

Q: QUESTION 3 The distribution of the number of hours of sleep people get per night is unimodal and…

A: Provided information is, The distribution of the number of hours of sleep people get per night is…

Q: Question 1-35 The exam scores for 200 students are normally distributed with a mean of 72 and a…

A: To find number of students score between 72 & 82

Q: QUESTION 19 Suppose the mean SAT score for a certain year was 1060 with a standard deviation of 194.…

A:

Q: Question 3 A set of final examination grades in an introductory statistics course is normally…

A: Given problem Given that A set of final examination grades in an introductory statistics course is…

Q: EX 3: find The RANGE, VARIANCE, AND STANDARD DEVIATION for data in table 3.3. Table 3.3 Age…

A: Range is given by,  R= Maximum observation-minimum Observation Here highest is 54 and Lowest is 5…

Q: Question 3 The times for 88 athletes who ran a 100 m sprint on the same track are shown below. All…

A: Given the data 10.2  10.8  10.9  10.3  10.2  10.4  10.1  10.4 (i) Mean = ∑1=18 xin              =…

Q: QUESTION 5 The distribution of the number of hours of sleep people get per night is unimodal and…

A: Given:Mean=μ=6Standard deviation=σ=1.5Data point=x=4.5   The formula of z-score is as follows:…

Q: Question 15 The grades for a standardized test are normally distributed with a mean of 65 and a…

A:

Q: Question 3 According to the Empirical rule, what percent of the data should be between 174 and 846…

A: Given information- Population mean, μ = 510 Population standard deviation, σ = 168 We have to find…

Q: question 6. The highway mileage (mpg) for a sample of 11 different models of a car company can be…

A: The mode is obtained below:   The given data set is 38, 24, 36, 21, 20, 32, 47, 31, 37, 41 and 37.…

Q: QUESTION 15 The weight of football players is normally distributed with a mean of 200 pounds and a…

A: Obtain the minimum weight of the middle 95% of the players The minimum weight of the middle 95% of…

Q: QUESTION 1 Find  the standard deviation of the following data items:   22, 27, 27, 35

A:

Q: Question 4. In 2019, a study found the average American spent 2.77 hours a week in video calls, with…

A:

Q: QUESTION 6 Find the standard deviation of the following numbers: 1, 1, 4, 6, 8, 10, 10, 12

A:

Q: Question 5. (CHILDHOOD NEVER COMES BACK) Bubba bought a bubble blower machine which produced 3125…

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

Q: Question 8. The variance of a sample of 49 observations equals 64. The standard deviation of the…

A: We want to find the sample standard deviation

Q: Question 5: One of the symptoms of the flu is an elevated pulse rate. Pulse rates (in beats per…

A: One of the symptoms of the flu is an elevated pulse rate. Pulse rates (in beats per minute) for n =…

Q: Question 14 The frequency distribution of the speed, in kilometres per hour (km/h), of a sample of…

A:

Q: QUESTION 5 Scores for an admittance exam are normally distributed with a mean of 70 and a standard…

A: Let "x" be the lowest score of a student.

Q: Question 3 Suppose Andrew earns $45,000 EC per month. The average salary for everyone in Andrew's…

A: We have given that.   X~N( μ , ?^2 )     Z-score =( x - μ )/?

Q: QUESTION 43 The results from a statistics class' first exam are as follows: The average grade…

A:

Q: Question 22 An article reports that its author used a 25-item test (with dichotomous scoring for…

A: Reliability is used to measure the overall consistency of the measure or how extend a material or…

Q: Question 3 A small local business has an average of 130 customers per day, with a standard deviation…

A:

Q: QUESTION 3 Two classes A and B of 200 students each take the same examination, out of 100 points.…

A: We can find probability using z table.

Q: Question 5: Calculate the standard deviation of the data set. Hint: 95% is two standard deviations…

A:

Q: Question 1 - Analysis of Heart Rate For fun a medical school professor once made a class of med…

A: Answer:Given that:Analysis of Heart RateFor fun a medical school professor once made a class of med…

Q: Question 21 The empirical rule can be broken down into three parts: 1.68% of the data falls within…

A: To find- The empirical rule can be broken down into three parts: 68% of the data falls within the…

Q: Question 2: At the end of the last semester, Samantha took four final exams. The mean and standard…

A: a. Consider that the mean and standard deviation of a random variable x are µ and σ, respectively.…

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: From the given information, Consider, X be a random variable that follows the normal distribution…

Q: QUESTION 13 Find the standard deviation for the given data. Round your answer to one more decimal…

A: Given that  10,9,20,12,19,11,14,13,20  To find the standard deviation

Q: Glucose levels in patients free of diabetes are assumed to follow a normal distribution with a mean…

A: Given information- Population mean, μ = 120 Population standard deviation, σ = 16 Let X be the…

Q: Questions 1. Find Mean, Standard Deviation, Third quantile, 21st Percentile, and kurtosis for the…

A: Given: The provided data is:                                                          120, 110, 89,…