An insurance company offers its policyholders a number of different premium payment options. for a randomly selected policyholder, let x = the number of months between successive payments. the cdf of x is as follows: f(x) =0 - x < 10.33 - 1 < x < 30.44 - 3 < x < 40.48 - 4 < x < 60.86 - 6 < x < 121 - 12 < xa. what is the pmf of x? x 1 3 4 6 12p(x)b. using just the cdf, compute p(3 ≤ x ≤ 6) and p(4 ≤ x).p(3 < x < 6) =p(4 < x) =

Step-by-step explanation:

Given that X is the number of months between successive payments

Cumulative distribution function of X is

a) PMF of x would be

b)

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles