2000 Midterm # er to the following graph for Questions 36-39. The following tne

Question

2000 Midterm # er to the following graph for Questions 36-39. The following tne scores that 50 NYC group foster homes received when Professor Alvarado-De Jss Spring 2018-Pwgs 8 percertage histogram reprosents Group Foster 10% 0% 50 but 60 36. Th e percentage of scores between 70 but less than 85 is a) 64% b) 76% c) 68% 56% d) 37. The number of group homes with scores of less 70 is a) 3 b) 7 c) 19 d) 43 38. The percentage of homes with scores of at least 90 is a) 18% b) 8% c) 30% d) 82% 39. The third quartile is approximately a) 73 b) 80 c) 87 d) 90

Explanation / Answer

36)

P(70<X<85)=24+18+14+12=68%

37)

P(X<70)=6+8=14%

hence number of house =np=50*0.14=7

38)

P(X>90)=10+8 =18

39)

3rd quartile is at 75th percentile whcih is approximately =87

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