A set of n = 12 pairs of scores has ΣX = 24, ΣY = 36, and ΣXY = 84. What is the value of SP for these data?​ Select one: a. 8 b. ​ 14 c. ​ -6 d. 12

Q: A group of students were surveyed about the number of siblings they have. The frequencies and…

A: Solution: From the given information, the table of frequencies and relative frequencies of their…

Q: Convert each individual data value to a standardized z-score. A. FICO credit scores:. X=562, u=746,…

A: Givenx=562Mean(μ)=746standard deviation(σ)=63

Q: A frisbee-golf club recorded the ages of its members and used the results to construct this…

A: Age of member  Number of people  16-20 7 21-25 2 26-30 5 31-35 3

Q: Q6. In a drug trial, 50 patients (samples) are divided into two groups (Group A and Group B) to…

A: Age (x) x-x¯2 32 150.7984 42 5.1984 31 176.3584 63 350.4384 48 13.8384 30 203.9184 57…

Q: The following data are the monthly salaries and the grade point averages for students who obtained a…

A: Data  Let X monthly salary and Y be the grade point average X=2.6,3.4,3.6,3.2,3.5,2.9…

Q: For the following scores, Participant X Y A 2 6 B 3 3 C 4 2 D 7 1 Draw a scatterplot…

A: Procedure to draw scatter plot: Draw the x axis starting from 0 to 8 with 1 unit scale. Draw the y…

Q: For the data set: 1 2, 3, 4, 5 the average or mean is 3, but the sum of the square of the deviations…

A: Given the mean=3

Q: The following table shows deaths due to tuberculosis (TB) in two towns. Complete parts (a) through…

A: a. The population for whites in Town 1 are 4675000.

Q: The chart below shows the grade distribution on a quiz in one of my classes. If there are 34…

A: Solution: The objective is to find the number of students who scored A grade

Q: C C C

A: Make frequency tables for the following data sets. Include columns for relative and cumulative…

Q: For the scores in the following table. what is the value of EX O 225 O 20 O 05

A:

Q: Find the values of Qj, Q3, Dz and P4, from the following data: Marks No. of Students more than 70 7…

A: Given that  We have to find the first quartile Q1, third Quartile Q3, third decile D3, 40th…

Q: The data set represents the number of eggs produced by a small group of chickens each day for ten…

A: The questions is to find the average number of eggs produced in a day

Q: For the data set {0.7, 0.2, 0.4, 0.5}, find î

A: The given data set has the observations:{0.7, 0.2, 0.4, 0.5}The objective is to obtain x~, i.e., the…

Q: The number of students at one campus who had a 4.0 GPA is shown below, organized by class. Draw a…

A: Solution

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: Scores Frequency 1-20 17 21 - 40 41 - 60 61 - 80 81 - 100 27 33 23 10

A: Given Scores Frequency 1 - 20 17 21 - 40 27 41 - 60 33 61 - 80 23 81 - 100 10

Q: Monte recorded the gas mileage, in miles per hour, of ten different cars he is considering buying:…

A: The given mileage are 34 , 27 , 30 , 24 , 28 , 31 , 42 , 30 , 29 , 19

Q: Find the P - hat and q - hat for the given data, n = 520 and X = 266 Round to three decimals

A: Answer: From the given data, Sample size (n) = 520 X = 266

Q: Compute the coefficient of variation CVar .

A: Given that,  2(red), 4(black), 8(blue), 6(green), 10(orange), 12(black).

Q: The following variable represent numbers, ranked from lower to highest A B C D E. What is the median…

A: There are total 5 numbers in the given data A B C D E. So thee median will be 5+12=3rd value.

Q: d. P(AUB)=0.5 How many different committees of3 students (2 male and 1 female) can be formed from a…

A: We hàve to find gíen probability.

Q: a. What test will you do? b. What are the hypotheses? c. What is the decision rule? d. Calculate the…

A: b) The null and alternative hypotheses are below: H0 :There is no difference in the mean scores of…

Q: 9. Which data set has the greatest coefficient of determination ()?

A: here use concept of correlation and coefficient of determination

Q: please give answers of b,c

A: The data on 25 respondents from group A is given by : Age (x) 32 42 31 63 48 30 57…

Q: 6. Mr. Landis created a steam and leaf plot to represent the scores his students made on the final…

A:

Q: The following is data for the first and second Quiz scores for 8 students in a class. First Quiz…

A: Points are plotted below

Q: Does Cable Video on Demand (VOD D4+) increase ad effectiveness? A recent VOD study compared general…

A:

Q: Given a data set with μ = 40 and o = 5.3 , find the z-score for each data point listed below. Round…

A:

Q: For the two sets of data below, find out that which set is more variable. Set A: 50, 37, 29, 54, 30,…

A: To find out that which set is more variable we need to find standard deviation of set A and set B…

Q: 4) Give the five-number summary of the data shown in the boxplot below: 50 60 70 80

A: Boxplot is one of the graphical methods that is drawn for the quantitative variable to explain the…

Q: Compare the shapes of the distributions of the two data sets. Both data sets are skewed right. Both…

A: Description for data set A.A line plot that is symmetrical with respect to a data point at position…

Q: Which equation represents the data in the table? 4. 100 25 6.25 1.5625 y= 100(금)" ов. y = 400(금)" O…

A: Equations