A set of n = 10 pairs of scores has X = 20, Y = 30, and XY = 74. What is the value of SP for these data? Question 7 options: 74 24 14 -14

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A: From the given dot plot, the data values are 60, 64, 65, 65, 66, 67, 67, 67, 69, 69, 70, 72, 72, 74,…

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A: The boxplot is:

Q: 4 4 3 2 2 О-2 3-5 6-8 9-11 12-14

A: Histogram

Q: What is the value of SP for the following set of data? X         Y 2          1 4          2 9…

A: X       Y       X Y 2 1 2 4 2 8 9 8 72 ∑x=15 ∑Y=11 ∑XY=82

Q: Consider the following data. 12,14,1,7,6,212,14,1,7,6,2 Copy Data Step 1 of 3 : Determine the…

A: Given data: Let , X =  12,14,1,7,6,212,14,1,7,6,2 n = 11 To calculate: The mean of the data

Q: Use a stem and leaf to display the data. 40 40 44 48 35 40 36 53 32 36 40 35 30 21 40 36 40 36 40 33…

A: The given data is : 40 40 44 48 35 40 36 53 32 36 40 35 30 21 40 36 40 36 40 33 40 32 38 29

Q: For the following data: 2, 5, 5, 6, 7, 7, 8, 9, 10 find Q4

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Q: An educational psychologist would like to determine whether access to computers has an effect on…

A: A) Test hypothesis are     H0 : µ1 - µ2 = 0 H1 : µ1 - µ2 ≠ 0       Pooled variance Sp2 =…

Q: Find the variance for the set of data: 27, 33, 20, 25, 25. The variance is ***

A: Solution: x x2 27 729 33 1089 20 400 25 625 25 625 --- --- ∑x =130 ∑x2 =34685

Q: For the data set, {8, 3, 1, 11, 8, 7}, Q1 3.0 %3D Q3 8.0 ニ IQR = | 8.25

A:

Q: A student measuring how gasoline prices change records the cost of gas at 10 randomly selected…

A: Introduction Data are the nos. that are collected and analyzed to draw meaningful insight from it.

Q: What is the mean of the data set comprising the numbers 7, 8, 4, 5 and 11

A: Data set: 7, 8, 4, 5 and 11 Number of observations = 5

Q: 4. Find the median, mode, and range for the following lists of data. а. 23, 28, 22, 31, 23 b. -2, 5,…

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Q: Here are the reading scores (out of 60) of 20 randomly selected kindergarten kids in a district 34,…

A: Answer:- Given data in ascending order,  15, 26, 27, 29, 31, 32, 34, 35, 36, 38, 39, 39, 41, 42, 43,…

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A: Given histogram from above question From histogram,mode=9

Q: onsider the following data. 14,6,−11,−6,5,1014,6,−11,−6,5,10 Copy Data Step 1 of 3:  Determine…

A: We have given a data set, 14 6 -11 -6 5 10

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Q: a set of 50 data values has a mean of 15 and a A set of 50 data has a mean of 15 and a varience of…

A:

Q: Jocelyn believes that the amount of sleep she tends to get on weekends differs from the amount of…

A: School week :  { 7,7.5,8,6.5,8,7.5,7,6.5,7,8 }  N1 =10  df1 = N-1 = 9  Weekend :  {…