* The table shows a frequency distribution of Mathematic session marks for 120 students in the second stage at engineering faculty. Find the Quartiles of the distribution, then 30 students have marks equal to 65 or lower? Choose either True or : False Mark 30-39 40-49 50-59 60-69 70-79 80-89 90-100 Number of Students 1 3 11 21 43 32 9 False O True O

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A: Note: Please repost 2nd question as i can answer only 1 question as per my policy.

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Q: The data set below represents the test scores of 10 students: 799, 219, 897, 764, 866, 1556, 120,…

A: Percentile is a number where certain percentage of scores fall below that number.

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A: Proceed as shown

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A: Given:

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A: Formula for sample mean is as follows,   x¯ = Sum of all observations Total number of observations

Q: Are discriptive and inferential statistics competive or coplementary?

A: Descriptive statistics and inferential statistics are complementary to each other.

Q: The test scores of 16 students are listed below:             44, 46, 51, 57, 60, 63, 65, 70, 75, 76,…

A: We have the test score of 16 students i.e. 44, 46, 51, 57, 60, 63, 65, 70, 75, 76, 85, 87, 90, 94…

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A: Given: n = 5 Formula Used: Range = Maximum value - Minimum value Mean μ = 1n∑i=1nXi =…

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A: An appliance company measured customer satisfaction among a randomly selected group of customers who…

Q: Here is a distribution of quiz scores for a statistics course: 87, 91, 74, 73, 80, 84, 68, 75 What…

A: according to given data we have to find out the range for the given datadata,87,91,74,73,80,84,68,75

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A: Given that, 3, 6, 18, 6, 10, 4, 7

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Q: The test scores of 16 students are listed below:             44, 46, 51, 57, 60, 63, 65, 70, 75,…

A: The given data is   44, 46, 51, 57, 60, 63, 65, 70, 75, 76, 85, 87, 90, 94, 95, 97 Order your data…

Q: How to find the z-score given the percentile.

A: Here use z table for z score from probability