X is less than or equal to -18
There are 11 outcomes for the two events happening one after another. Since the spinner has five outcomes and the number cube has six outcomes, you add the two outcomes together and get 11.
Answer:
The population standard deviation is 1.92.
Step-by-step explanation:
Population mean:
Sum of all values divided by the number of values. Thus:

Population standard deviation:
Square root of the division between the sum of the difference squared of each value and the mean, and the number of values. Thus.

The population standard deviation is 1.92.
½ = v; multiply the divisor to remove the variable from the denominator.