solutions_-_probability__stats_review_a1.pdf

# The bag at random cz pblack t f pblue not black to 0v

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the bag at random. \ CZ\) P(black) ^T ^\f\) P(blue | not black) t>o 0v u M our&r re^i d) odds jn^gainst red c) odds in favor of blue ^l2£\) when selecting 2 - P(red, then black without replacement) f) when selecting 2 - P(black, then black without replacement 10 ^ i 3 ' g) when selecting 3 - P(blue, then black, thenSTue \yith replacement) (\ Z lfi ; 2 4 *- 7. High school students in one school chose their favorite leisure activity. Find each probabi I' ty ; ^Round[ toJhe_ rnearesftenth of a percent s r : avorite Leisure Activities Female Male Totals Sports 42 92 134 Video games 28 88 116 Reading 77 58 135 Texting 74 63 137 Shopping 62 34 96 Other 24 32 56 Total s 307 367 674 a) ^sports) |3i fjqq^/\) ^female or sports) ?OO-*-m^»s>-ftie^ T~^j7T ^\ «• ' J 1 3^7 . 13*4 f£j?r * -g^ >7«/ 6T/ fc7V c) /^male | reading) d) /^reading | female) c) /^male | video) f) /^texting and male) *ferr/.\» 3i £ nr^v. |_ in * I | ^j| VPBWM^—*« g) /^male | other) h) /^texting or shopping) 8. buring a flu epidemic, 35% of the school's students have the flu. Of those with the flu, 90% have high temperatures. However high temperatures are possible for people without the flu as well. In fact, the school nurse estimates that 12% of those without the flu have high temperatures. Ru ^tC^Xao a) Make a tree diagram with the above information. b) What percent of the student body has high temperatures? c) If a student has a high temperature, what is the probability that the student has the flu?

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9. The test scores on a college algebra test are as follows: 24 19 36 30 24 30 19 26 30 32 25 a. Find the range of the data.
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