Question

Select the best alternative. April, a meteorologist at the local TV station, looks at the rain predictions from the National Weather Service for her service area. These are the numbers: Amount (inches) Probability (percent) 0.0 5 0.5 5 1.0 5 2.0 5 3.0 5 4.0 25 6.0 10 8.0 40 What total will April predict? She will predict "a little over four and a halve inches”. She will predict "a little over four inches”. She does not have enough information to make any prediction. She will predict "a little over five inches".

Answer 1

From the given The probability distribution amount of Rain is expected f (x ) < x; Þ (34;) X;= Amount PCGU - corres espond probabil ing ability 0 x 5%. + 0.58 5% + 185%.+ 2x5%+ 3 X 5% + 4 X 25% + 68 10% t 8 x 40 % 5 125 M Expected Rain amount is 5.125 inches, predict a little over She will inches five