Question 8: Week 8 and 9 In ABM class, there are 584 students. The teacher provided a 50-item exam for third quarter. The average of the student's scores is 29.48 and a standard deviation of 11.53. In connection with #1, how many students got 40 and above? Your answer

Q: Which of the following are measures on positions of a data set? 1. the third qurtile 2. the median…

A: The third quartile, the median and the maximum measures the positions of a data set.

Q: The time for degree completion was record below. Years 4 6 5 6 5 8 Calculate the standard…

A: Calculation:The number of observations on time for degree completion (years) is, n = 6. Denote xi as…

Q: You throw a ball as far as you can 5 times, recording the distance for each throw: 165 feet, 184…

A: since only 5 observation is given we will consider them as sample (n = 5)and population (N = 100)…

Q: Subject 1st 2nd #1 10 11 #2 4 6 #3 7 9 #4 6 5   a. Calculate the mean difference. b. Calculate SS…

A:

Q: A large chemistry exam course took their final exam. The mean was 75 with a standard deviation of 8.…

A: Obtain the Z-score of the random variable X equals 60. The Z-score of the random variable X equals…

Q: The mode score on a statistics exam was 83. Which of these interpretations is correct? A.More…

A: Given information Mode score on a statistics exam = 83 Mode = The number having highest frequency is…

Q: Angela polled her first grade class about their family pets. The following data lists the number of…

A:

Q: The ACT math scores of a particular high school in New Jersey are approximately normally…

A: According to the empirical rule of normal distribution, in a normally distributed data set 68%, 95%,…

Q: you know 10% of the people in Amsterdam describe themselves as hipsters. you ask 400 respondents if…

A: Solution: Given data : p = 10% = 0.10 Sample size (n) = 400 To find: standard deviation of the…

Q: Part 1 of 3 What is the probability that the sample mean cholesterol level is greater than 212? The…

A: The central limit theorem states that if you have a population with mean μ and standard deviation σ…

Q: Jim and Pat are both taking Calculus. Jim scored 92 on a test in his class. The average on the test…

A: To find: Who actually did better? Include the Z-scores as part of the answer.

Q: 4. A car salesperson notes that she sells either 1, 2, 3, 4, 5 or 6 cars per week with equal…

A:

Q: Lesson: 7.2 Central Limit Theorem with Mean A quality control expert at LIFE batteries wants to…

A:

Q: Write a sentence in your lab report explaining the effect that adding the two new data points had on…

A: From the given information,Original data points = {60,31,50,48,50,54,56,62,53}New additional points…

Q: Laura learned that the average GPA in her school is 3.6 with a standard deviation of 0.3. If her GPA…

A: From the given information,   Mean = 3.6 Standard deviation = 0.3   The objective is to find the…

Q: 3. An instructor is administering a final examination. She tells her class that she will give an A…

A:

Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

A:

Q: SAT scores have a mean of 1026 and a standard deviation of 209. ACT scores have a mean of 20.8 and a…

A: The SAT scores, mean, and standard deviation are:The ACT scores, mean, and standard deviation are:

Q: For a statistics test the mean is 63 and the standard deviation is 7.0, and for a biology test the…

A: We know that ,Z-score=x-μσ

Q: The mean score on the ACT test was 21.5 and the standard deviation was 5.0. The mean score on the…

A: ACT score μ1 = 21.5σ1 = 5.0x1 = 26SAT score μ2 = 515σ2 = 100x2 = 605 which score will relatively…

Q: On a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90,…

A: Given that, Mean = 72 Standard deviation = 7

Q: The weight of a division I college football player has a mean of 255lb and a standard deviation of…

A:

Q: A student scored 31.9 on the mathematics section of the American College Test. The mean score for…

A: From the provided information, Mean (µ) and standard deviation (σ) of ACT exam score are 16 and 9.6.…

Q: Find the standard deviation of the following set of scores. 10, 2, 38, 23, 38, 23, 21, 23

A: From given data, set of score: 10, 2, 38, 23, 38, 23, 21, 23 Count, N = 8 Sum, ∑x = 178

Q: The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances…

A:

Q: Sarah entered her motorcycle in a slow race with 50 other contestants. She crossed the finish line…

A: It is required to state the formula for the number of standard deviations that the result was above…

Q: Cherise is interested in how her friends compare to the population for number of hours of television…

A: The test statistic is,

Q: The tourist bureau of the Caribbean Islands surveyed a sample of 5 United States tourists as they…

A: Standard deviation :

Q: With the extra data value,  the range, standard deviation, and variance is?

A: Given data: 3.31 2.79 2.83 1.97 1.69 2.54 2.46 3.44 3.93 1.59 2.86 1.61 2.57 4.02 2.49 2.42…

Q: Four students take tests.  The results of each test for the class and the student are listed in the…

A: a) John scored an 85 Mean(μ)=77 standard deviation(σ)=4

Q: In the 1992 presidential election, Alaska's 40 election districts averaged 1980 votes per district…

A: Given Information: Alaska's 40 election districts averaged 1980 votes per district for President…

Q: In the Social Psychology course, you receive a score of 77 on the second exam. You are told that the…

A: Solution: Let X be the score. From the given information, X=77, σ=8 and z=–0.75.

Q: Someone tells you that the mean score on a test was 85, and the standard deviation was -10. What…

A: GivenMean(μ)=85standard deviation(σ)=-10

Q: An Excel assignment counts for 0-10 points. The scores in a class of 12 students are recorded as…

A: Use the given data to form the excel table:   Scores x-x x-x2   1 -6 36…

Q: What is the standard deviation for these students' quiz scores

A: Let X denote the score on the quiz. We have to calculate the SD of X.