Question

Someone please help! Will give medal

The attention span of a two year-old is normally distributed with a mean of about 9.5 minutes and a standard deviation of 1.05 minutes. Suppose we randomly survey 60 two year-olds. What is the probability that a two year old has an attention span between 9.25 and 9.5 minutes?

Answer 1

9.5+1.05=what?

Answer 2

go on,

Answer 3

ok
9.5+1.05=10.55

Answer 4

and,60+10.55=70.55

Answer 5

9.25+9.5=18.75

Answer 6

and so,
70.55+18.75=89.3 is ur answer

Answer 7

medal plz?

Answer 8

plz?

Answer 9

Sorry i had stepped away from the computer! Thank you very much!