Both of the graphs represent normal distributions with a mean of muequals10. determine which of the two normal distributions has a standard deviation of sigma equals 2 and which has a standard deviation of sigmaequals3. explain how you know which is which.

the 50% point on the bell-shaped curve is about ±1.2 standard deviations from the mean, so the distribution with σ = 2 will have a width of about 4.7 at the points halfway to the peak. the distribution with σ = 3 will have a width of about 7.

step-by-step explanation:

he spend 5.1 minutes chatting with his friends

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5 1/10