What is the total number of scores (N) for the distribution shown in the following table?
X ,f
_______
4, 3
3 ,5
2,4
1 ,2
A. 37
B. 4
C. 10
D. 14
PLEASE SHOW WORK
What is the total number of scores (N) for the distribution shown in the following table?...
For the following frequency distribution of quiz scores, how many individuals took the quiz (N)? X f 5 6 4 5 3 5 2 3 1 2 ANSWERS: A. 5 B. 15 C. Cannot determine D. 21 PLEASE SHOW WORK
For the following scores: ( Show your work.) a. construct a frequency distribution table. b. sketch a histogram of the frequency distribution. 6, 4, 3, 5, 4, 2,4 5, 4, 6, 1, 4, 5,2
4. Find each value requested for the distribution of scores in the following table. a. n b. Ex c. EX upoil Buduzib Solo 4 2 otaq sa 2 4. 3 na
If people were shown a list of i-tunes, and asked to indicate the number of those i-tunes they have listed to, their responses to the question would result in a. a nominal scale variable. b. an ordinal scale variable. c. an interval scale variable. What is the shape of the distribution for the following set of data? Scores: 1, 1, 1, 2, 3, 3, 5 a. Symmetrical b. positively skewed c. negatively skewed d. Rectangular In a sample, n = 50, x-bar =...
please explain 4.1) (10 pts) Suppose that X and Y have the joint probability distribution shown in the table, find (a) the marginal distribution of X and call it f1, (b) the marginal distribution of Y and call it f2, (c) f(YIX=2), (d) determine if X and Y are independent or not. Throughout, show your work. f(X,Y) 2 4 у 1 3 0.12 0.38 0.27 0.04 0.12 0.07 |
Q1. A sample of n = 8 scores has a mean of M = 7. One score in the sample is changed from X = 20 to X = 4. What is the value for the new sample mean? Q2. A sample yielded the following scores: 2, 3, 4, 4, 5, 5, 5, 6, 6, 7 Assume that the scores are measurements of a discrete variable and find the median. Median = Assume that the scores are measurements of a...
For the following frequency distribution of quiz scores, how many individuals took the quiz? X f 5 6 2 3 1 2 Select one: O a. n= 7 b. n = 21 O O C. n= 5 d. n=15 o
. For the following set of scores, conduct a frequency distribution table including columns for frequency, cumulative frequency, and cumulative percentage: Scores: 1, 3, 1, 5, 6, 10, 3, 7, 4, 9, 3, 5, 8, 9, 2, 2
1) a) The following distribution shows the number of cars sold each month by a garage over a period of 3 years: 8 9 10 11 12 13 14 15 Number of cars (x) Number of months (f) 1 4 5 8 5 4 5 4 State whether the variable measured is continuous or discrete and find the mode, the mean and the median. (6 marks) b) The weight (in kg) of 40 patients of the Berkshire Hospital are summarised...
22. The following table shows four rows from a frequency distribution table for a sample of n 20 scores. Use interpolation to find the percentiles and percentile ranks requested: 40-49 30-39 20-29 10-19 Cf 20 16 C% 100 80 45 25 4 4 3 a. Find the 30th percentile. b. Find the 52nd percentile c. What is the percentile rank for X - 46? d. What is the percentile rank for X-21?