E, A jar contains 20 red marbles and 10 blue marbles. If you take a random sample of n = 3 marbles from this jar, and the first two marbles are both red, what is the probability that the third marble also will be red? 20 a. 30 b. 18 28 C. 30 d. 28

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A: Qualitative and quantitative variable

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Q: Assume that the sample is a simple random sample. 13      15.5      3.5      8.5      17      18.5…

A: given data : 13,15.5,3.5,8.5,17,18.5,8.5,19,9.5,20

Q: Assume that the sample is a simple random sample. 19.5      21      7.5      19      14      20…

A: given data : 19.5,21,7.5,19,14,20,10,12,21.5,16.5

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A: It is given that: μ (mean IQ score)=100σ (SD of IQ score)=15

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