Grouped Data Class Interval 96-100 91-95 86-90 81-85 76-80 71-75 66-70 1-5 Tally HH-111 HH-1111 H-1 H-1 HH-1111 Frequency 1 Co 6 9 9 2 N-44

Q: 2. Anxiety level and average grade of selected grade 11 students. Anxiety level 2 3 5 7 GPA 95 92 91…

A: The scatter plot can be obtained using EXCEL software. Enter the values of English in column A and…

Q: Kevin scored at the 70th percentile on a test given to 9920 students. How many students scored lower…

A:

Q: COURSE: HUMAN FACTOR ENGINEERING Eye height is 1630mm and SD is 69 z= 1.64. Calculate the 95 th…

A: The 95th percentile is, z=x-μσ1.64=x-163069113.16=x-1630x=1630+113.16=1743.16

Q: A certain test is worth125 points. How many points (rounded to the nearest point) are needed to…

A: A certain test is worth125 points.

Q: 1. English and Science grades of five science club officers. English grade 80 80 85 Science grade 80…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: Cholesterol Levels A medical researcher wishes to see if he can lower the cholesterol levels through…

A:

Q: Class Interval 0-9 10 - 19 20-29 30-39 40 - 49 64857 n = <CF

A: Given data is Class Frequency(fi) 0 - 9 6 10 - 19 4 20 - 29 8 30 - 39 5 40 - 49 7

Q: 5. With height from 150 cm to 200 cm 6. With height less than 172 Formula: | z =

A:

Q: Heights of NBA All-Star players are normally distributed. 97.5% of players have a height of 85…

A:

Q: 2. The table below presents data on annual labor income in a very simple, four-person economy, with…

A: Here, given that P25= 25th percentile P75= 75th percentile S25= Share held by the bottom 25% S75=…

Q: Find the percentile for the data value. Data set: 2 2 7 4 2 5 9 9 11 3 2 9 6 1 9; data value: 7

A: Sort the data values in ascending order

Q: Find the percent of 16/20 and 4/20. What are the relationships between the answers?

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Q: Find the z-score that cuts off 65% in the body on the left.

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Q: Find the z-score that separates the largest 5% of scores from the rest.  Round your result to 3…

A: Obtain the z-score that separates the largest 5% of scores from the rest. The z-score that separates…

Q: If a person’s z score equals -2.02, what is their percentile?

A: Given problem Given that   Given Person's z score =  -2.02 Using the Standard Normal Table ( Z Table…

Q: What score corresponds to the 10th ​percentile?

A: Here Given Graph of percentile(Y axis)  and Test scores( X axis)

Q: Class Interval 96 - 100 91 - 95 86 - 90 81-85 76 - 80 71-75 66-70 Lower Boundaries (LB) 95.5 90.5…

A: The data is as follows Class Interval Lower Boundaries Frequency Less than cumulative frequency…

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Given that mean = 32 hours Median = 28.2 hours 7th percentile = 17 hours

Q: Marks Relative Frequency 0<xs 20 135 31 20 <xS 40 135 41 40 <xS 60 135 7 60 <xS 80 45 8.

A: A measure that divides the given data into equal parts is called a measure of dispersion or…

Q: The test score at the 25th percentile is 108. What is the test score at the 75th percentile?

A: Solution

Q: Marla scored 70% on her last unit exam in her statistics class. When Marla took the SAT exam, she…

A: solution:  The difference is that Marla’s exam in her statistics class was graded by percent of…

Q: Find Percentile 30 and Percentile 35. Base your answer from the formula provided.

A: Data given Class Frequencyf cf 5 - 9 4 4 10 - 14 5 9 15 - 19 10 19 20 - 24 8 27 25 - 29…

Q: Construct a normal probability plot for the following sample of observations on coating thickness…

A: Given data set: The number of observations is, n=16 The mean is calculated below. μ=∑i=1nxn…

Q: What number of offenses falls at the 30th percentile? The 80th percentile?

A: Data is given for number of offences for year(2014 to 2013) We have to calculate 30th and 80th…

Q: Cholesterol Levels A medical researcher wishes to see if he can lower the cholesterol levels through…

A:

Q: 50 people are selected randomly from a certain population and it is found that 13 people in the…

A: Given that  n=50 , X=13 X=Number of people are over 6 feet tall

Q: Find the z-score that corresponds to the 63rd percentile

A: we have to find the Z-score that corresponds tothe 63rd percentile.

Q: In a class of 10 students, James got 3rd position from the lowest. What is his percentile rank?

A: Given data: In a class of 10 students, James got 3rd position from the lowest. To find: What is his…

Q: Victims of Violence A random survey of 75 women who were victims of violence found that 22 were…

A: Given that  For Women  Sample size (n1)=75 X1 denotes the number of women attacked by relative…

Q: Find the percentile rank of a test score of 76 for the data set 70,73,68,83,78,80,89,88,65

A: Solution-: Given data:  70,73,68,83,78,80,89,88,65 We find percentile rank of a test score of 76=?

Q: The students of a large university in Luzon were studied regarding their hours of sleep at night.…

A: Given Information :  The students of a large university in Luzon were studied regarding their hours…

Q: Find the first quartile (Q1), second quartile (Q2), and third quartile (Q3). If Baby A weighs 7.98…

A: The following are weights (in pounds) of newborn babies in a certain hospital in a period of 1 week:…

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Given information- Mean of the data = 35 hours Median = 31.2 hours Sample size = 24 families We have…

Q: q2-  91.2% of 1980 is: Select one: 18057.6 180576 180.576 1805.76 18.0576

A: We are asking to find 91.2% 0f 1980

Q: Forty percent of players scored 8 points or Sixty percent of players scored 8 points or more - less…

A: Given that,The 40th percentile for points scored per player in a game is 8.That is,P40 = 8

Q: Hurricane Damage Find the percentile rank for each value in the data set. The data represent the…

A: Given data  2.3,3.3,6.2,7.9,9.6,11.3 N =6

Q: nstruct a normal probability plot for the following sample of observations on coating thickness for…

A: Given: Construct a normal probability plot for the following sample of observations on coating…