An ordinary (fair) coin is tossed 3 times. outcomes are thus triples of "heads" () and "tails" () which we write , , etc. for each outcome, let be the random variable counting the number of heads in each outcome. for example, if the outcome is , then . suppose that the random variable is defined in terms of as follows: . the values of are thus: outcome value of calculate the probability distribution function of , i. e. the function . first, fill in the first row with the values of . then fill in the appropriate probabilities in the second row.

If f(x)=2x+2and g(x)=x^3, what is (g•f)(2)

Which elements in the set below are integers? 12, –3⁄4,√ 25 , –7, √ 5 , 14⁄7, 9 a. 12, √ 25 , –7, 9 b. 12, √ 25 , –7, 14⁄7, 9 c. –3⁄4, 25 , √ 5 ,14⁄7 d. 12, –7, 9

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?