Question

The mean midday temperature recorded in June in a city in South California is 36ºC, and the standard deviation is 3ºC.

Answer 1

Answer:

4 days

Step-by-step explanation:

Answer 2

mean = 36

sd = 3

P( 39 < x < 42) = P(( 39 - 36) / 3 < Z < ( 42 - 36) / 3)

P(3/3 <z<6/3)
 P( 1 < Z < 2) = P( x < 2) - P( x < 1) = 0.9772 - 0.8413 = 0.1359
(need to use the normal probability table to get the decimal numbers) 

June has 30 days

 0.1359*30 = 4.0777 days, round to 4 days