. A standard test of intelligence is scaled so that the mean IQ is 100, and the standard deviation is 15. If there are 40,00 people in a certain town, what is the percentage of people who have an IQ between 70 and 130? 2.How many people in the town have IQ between 70 and 130

. A standard test of intelligence is scaled so that the mean IQ is 100, and the standard deviation is 15. If there are 40,00 people in a certain town, what is the percentage of people who have an IQ between 70 and 130? 2.How many people in the town have IQ between 70 and 130

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: Suppose you select a sample of 2,000 high school seniors' verbal SAT scores. The mean and standard…

Q: Find the standard deviation of the lengths of the wolves in the entire animal preserve.

A: The mean of the lengths of the wolves in the entire animal preserve is,…

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: Find the number of boys and the combined standard deviation

A: Given : Our aim is to find the number of boys and combined standard deviation.

Q: In a class of 50 students of Mr Ramos in the subject Calculus, the result of their quiz shows that…

A: given data N = 50μ= 78σ= 6.58carlos : 82Julia : 75how many students did carlos surpassed?n(x<82)…

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: Below represents the amounts that a random sample of employees reported that they spent on dinner…

Q: Give two sets of five numbers that have the same mean but different standard deviations. OSet 1: 3,…

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

Q: a. Which player had the higher average points when compared to the other players on his team?

Q: Consider a sample with a mean of 500 and a standard deviation of 100. What are the z-scores for the…

Q: The mean score on a set of 17 tests is 85. Suppose two more students take the test and score 62 and…

A: we need to find new mean using given conditions

Q: The mean score on a set of 23 tests is 76. Suppose two more students take the test and score 70 and…

A: given data n = 23 had mean of 76 . two more students take test and score 70 and 65. new mean = ?

Q: A survey found that women's heights are normally distributed with mean 63.6 in and standard…

A: The sample mean [x] =63.6The standard deviation [s] =2.3

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A: 36) Answer:- Given, The IQ scores (X) of adults are normally distributed with a mean of 100 and a…

Q: 6. The mean grade of 10 students is 86. Accidentally, after computing the mean, the teacher erased…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

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: Identify the level of measurement of the data, and explain what is wrong with the given calculation.…

Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

Q: The average number of accidents at controlled intersections per year is 4.3. Is this average less…

Q: The distribution of the scores on a standardized exam is approximately normal with mean 400 and…

A: The two values of Z that will contain 50% of scores lie are obtained as shown below:From the…

Q: Suppose you wanted to determine the mean height of 8-year old boys living in the U.S. You select a…

A: It is given that a sample of 100 8-year-old boys mean height in the U.S. We were asked how can a…

Q: If a data value has a z-score of 3.00 and the mean of the distribution is 100 with a standard…

A: 1) Given data, z=3 μ=100 σ=15 X=?

Q: The following is the scores of an exam: 40 50 50 52 58 58 62 65 68 72 79 80 80 87 90 96 98 Calculate…

A: Data X: 40,50,50,52,58,58,62,65,68,72,79,80,80,87,90,96,98

Question

1. A standard test of intelligence is scaled so that the mean IQ is 100, and the standard deviation is 15. If there are 40,00 people in a certain town, what is the percentage of people who have an IQ between 70 and 130?

2.How many people in the town have IQ between 70 and 130?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

Q.5. Find the median if the mean and mode are given as 35 and 30 respectively?
10. A student has a mean score of 75 on three tests. If her scores on the first tests are 80 and 75, what is her score on the third test? a. 71 b. 72 C. 73 d. 74 e. 70
An Excel assignment counts for 0-10 points. The scores in a class of 12 students are recorded as follows:1 5 5 6 7 7 8 8 8 9 10 10 What is the deviation of the score 10 from the mean in 13a (recall that this involves a subtraction of the mean from the particular score)? I think I got answer but want to check.
Suppose a researcher wants to test if the average diastolic blood pressure in African-Americans is different than the average diastolic blood pressure in the general population. Note that the average diastolic blood pressure in the general population is 70 mmHG. The researcher retains the null hypothesis, so she therefore concludes... Group of answer choices The mean diastolic blood pressure in African-Americans is equal to that of the general population The mean diastolic blood pressure in African-Americans is different than that of the general population
Answer all questions: 1. What is the range and standard deviation for the following population of scores? Scores: 5,2,5,4
1. higher or lower 2. Slower or faster
5. Given an example where you measured the height of 10 of your classmates and computed a mean of 70 inches and standarad diviation of 4 inches, COmpute the T scores for 68 inches and 76 inches.
43. Harvey found that his z-score on a college readiness test, compared to others who took the same test was 1.25. Which of the following best describes how you might interpret this value? Only 1.25% of the people taking the test have scores higher than Harvey. Harvey's score was 1.25 times the mean score of all people taking the test. Hervey scored 1.25 points above the mean of all people taking the test. Harvey's score was 1.25 standard deviations from above the mean of all people taking the test.
The mean score on a set of 17 tests is 82. Suppose two more students take the test and score 66 and 56. What is the new mean?
38. The average IQ score for adults is 100 with a standard deviation of 15. Assume that the distribution of IQ scores is approximately normal. a. Find the percentage of adults who have an IQ score less than 90. b. Find the percentage of adults who have an IQ score which exceeds the mean by at least 15 points. e. Find the percentage of adults who have an IQ score between 100 and 120. d. Find the percentage of adults who have an IQ score less than 55 or more than 145.
Can you please assist ?
The distances golf balls travel under laboratory testing conditions are normally distributed. The mean is 312 yards. The probability the golf ball travels further than 319 yards is 0.28. Find the probability a randomly selected golf ball travels between 305 yards and 319 yards. Express the answer as a decimal value rounded to the nearest hundredth.