An insurance company is interested in a statistical profile of the age its clients in a particular geographic region. They provide you with grouped data on all (i.e. the population) of their clients in that region
Less than 25 years old 20
25 years old to 34.99 years old 40
35 years old to 49.99 years old 50
50 years old to 64.99 years old 50
65 plus years old 30
1. Calculate the mean age of the company’s clients in this region
2. Calculate the median age of the company’s clients in this region
3. Calculate the variance and standard deviation of the clients’ age in this region
4. Calculate the 25th and 75th percentile of the clients’ age.
please note that the class interval is unequal.
an early assistance would be very much appreciated....