In one city, 24% of adult smoke. In groups of size 130 of adults , what is the variance of the number that smoke ?

Step-by-step explanation:

From the question we are told that:

Probability of  having a smoker

Sample size

Generally the equation for Variance X is mathematically given by

idk bring the function back   im not smart

step-by-step explanation:

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