Exercise C The grades of 32 students daring the First Grading Period in Mathematics are aas follow 85 85 84 84 84 83 83 82 82 82 B1 81 81 81 81 80 80 80 79 79 79 79 78 78 78 78 78 78 77 76 75 1. Make a simple frequency distribution table. Put in the table a cumulative frequency column and cumulative percent column. 2. Calculate Q1.Q2, and Q3

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A: Solution is given:

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Q: Why is normal distribution important in statistics and in everyday life?

A: Answer Given normal distribution important in statistics and in everyday life

Q: find the mean, variance and standard deviation.

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Q: S(5x + 4x' + 3x) dx + 4x + 3r Example 65.

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A: here available digit 2,3,4,5 and 6 total 5 digits available 

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A: t at 0.05/2= 0.025 level of significance and n-1= 16-1= 15 d.f. from the table,   t= 2.13145  Option...

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A: Given: Without Treatment With Treatment 1.8 3.9 2.9 4.8 3.3 4.7 3.1 4.9 2.4 4.2 1.5 4...

Q: I Find the variance and standard deviation. Show your solution. 2. 1 2 3 4 P(x) 0.11 0.22 033 0.44 0...

A: E(X)=∑X.P(X)E(X)=0×0.11+1×0.22+2×0.33+3×0.44+4×0.55E(X)=0+0.22+0.66+1.32+2.2E(X)=4.4

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A: here use standard normal distribution properties

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A: Here we have given that the data set 4.0, 3.8, 3.7, 3.6, 3.6, 3.2, 3.1, 3.0, 2.9, 2.8, 2.5, 2.2, 2.1...

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A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are sol...

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Q: Why is the null hypothesis for regression usually B- 0?

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A: Here given,  sample size is large