40-49 50-59 60-69 70-79 80-89 90-99 Points How many students scored more than 89 points? Frequency (Number of Students)

Q: ind the mean score 50-59: 6 60-69:5 70-79: 7 80-89: 12 90-99: 10

A: Solution: Class(1) Frequency (f)(2) Mid value (x)(3) f⋅x(4)=(2)×(3) 50-59 6 54.5 327 60-69 5…

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A:

Q: 0.3 6-4 0.1. 0.45(1-0.45) 120

A: Consider the mathematical expression 6-40.30.1. Evaluate the expression 6-40.30.1 as follows.…

Q: Female height in inches 54 , 58 ,60, 60 , 60 , 60 , 61 , 61 , 61 , 61 , 61 , 61 , 62 ,62 , 63 , 64…

A: x (x-xbar)^2 54 56.64543 58 12.4349 60 2.32964 60 2.32964 60 2.32964 60 2.32964 61…

Q: What does p < .05 mean? Explain how you would interpret this.

A: Given p&lt;0.05 means values of p is less than 0.05.

Q: Find the mean and the median for each list of values. (a) 63, 69, 71, 76, 85, 87 (mean) (Round the…

A: Mean: Mean is the expected value of a set of observations. In other words, mean is he average of the…

Q: he average (mean) aptitude score? The median aptitude score?

A:

Q: MAT 143 11-3 Lab Answer the following questions: 1. Find the mean, medjan, mode and range for the…

A: 2, 10, 16, 220, 18, 14, 9 sample size(n)=7

Q: OMean (a) Which measures of central tendency do OMedian not exist for this data set? Choose all that…

A: Here the given data is in numeric form thus we can compute the mean.  Also the data can be arranged…

Q: Domain & Range 104 What is the Domain? 1. What is the Range? -5 Subn

A: follow next step

Q: What is the z score for test scores of 70 and 90?  TEST SCORES: 50,60,61,63,66,67,73,82,89,92

A: From the provided information, The test scores are 50, 60, 61, 63, 66, 67, 73, 82, 89, 92

Q: 158.18/5.5

A: Given query is to divide the decimal numbers.

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A: We can solve by the following given data

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A: Given data set : 17, 18, 21, 24, 25

Q: aformation coming from observation, counts, and measurements, or responses is know Statistics Sample…

A: A data is known as the collection, observations, and responses to surveys.

Q: Mean (a) Which measures of central tendency do Median not exist for this data set? Choose all that O…

A: Mean: It is the sum of an observations divided by the total number of observations of the data set.…

Q: True or false? 8.5 = (8-5) O True O False

A: 8·5n=8·5n

Q: 4- A statistics student made the following grades on 7 tests: 76, 82, 92, 95, 79, 86, and 92 What is…

A: Given: data 76,82,92,95,79,86,92 n =7 to find: mean

Q: Three students want to estimate the mean word length of the same book. To do this, each student…

A: Given Data: Let us consider the given table, Sample Word length Sample Mean 1 5,5,2,6,6 4.8 2…

Q: Describe about the difference between population means&gt;

A: Assuming that we are comparing the difference between two population means which are defined as The…

Q: Stem (ones) Leaf (tenths) 2,6,7,7,7,8,9,9,9 0,2,4,4,7,7,7,8,8,8,9,9,9,9 4…

A: From the stem and leaf plot, we see that the lowest value= 3.2 and the highest value = 6.6

Q: 97 48.5 48.5 91.5 -43 -43 51 -94 40.5 -83.5 23 -18 -65.5 28 -122 -12 -115 35 -6 59.5 -7

A: Given:

Q: % Error 234-23 43= 23 4+23 43 2 50.1-50.19 %3D 50.1+50.19 2)

A: Let us find the error of the given data.

Q: Day Evening Night Total Males 129 15 117 261 Females 118 18 116 252 Total 247 33…

A: The provided table is:   Day Evening Night Total Males 129 15 117 261…

Q: Based on the frequency distribution above, find the cumulative frequency for class 27-30. (Your…

A: let us first find the cumulative distribution table . cumulative frequency is the adding  frequency…

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A: Given that T follows a gamma distribution i.e

Q: SAT Score Averages 1150 1140 1130- 1120 1110 1100 State Combined SAT Score Averages: 1994 - 1998…

A: The question is about graphical representation From given line graph : Combined SAT score avg. for…

Q: 66, 69, 71, 72, 73.5, 74, 74, 76.5, 76.5, 77.5, 78, 80, 81, 85, 86, 86, 86, 87, 87, 87.5, 88.5, 89,…

A: Given information: 66, 69, 71, 72, 73.5, 74, 74, 76.5, 76.5, 77.5, 78, 80, 81, 85, 86, 86, 86, 87,…

Q: For a raw data, the arithmetic mean is 56 and sum of the observations is 840. One of the…

A: Given Information: Arithmetic mean of raw data is 56. Sum of observations is 840. One of the…

Q: The distribution of course grades in a very large class is (approximately) Normal with mean 48 and…

A: Given: μ = 77 σ = 6 Formula Used: Z = X-μσ

Q: Exercies O calculate the mean and media for this tabler Student b. Scove Score 82 2. 子チ 74 20 84 4.…

A: Data is given.  Total number of observations, n=10. Mean = ? Median = ?

Q: tem (ones) Leaf (tenths) 4 2,6,7,7,7,8,9,9,9 5 0,2,4,4,7,7,7,8,8,8,9,9,9,9 6…

A: From the given stem-and-leaf plot, the bolt lengths are  42, 46, 47, 47, 47, 48, 49, 49, 49, 50, 52,…