Mathematics, 16.10.2020 04:01 navleen4owjrk1
For a 4-units class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on students, and the distribution of total study hours per week is bell-shaped with a mean of 14 hours and a standard deviation of 3 hours.
Use the Empirical Rule to answer the following questions.
a) 68% of the students have study hours that are between
___and
c) What percentage of the students have study hours that are below 23? ___%
Answers: 1
Mathematics, 21.06.2019 16:00
This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?
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Mathematics, 21.06.2019 16:40
Which data set has a greater spread? why? set a: {38, 12, 23, 48, 55, 16, 18} set b: {44, 13, 24, 12, 56} has a greater spread because .
Answers: 2
Mathematics, 21.06.2019 18:20
17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.
Answers: 2
Mathematics, 21.06.2019 22:30
The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?
Answers: 1
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