The table below shows the offer price for 10 recent IPOs

Company                                           Offer Price

Proto Labs Inc………………….       $16.00

Annie’s Inc……………………..       $19.00

Splunk Inc……………………...        $17.00

Demand ware Inc……………….       $16.00

EPAM Systems………………...        $12.00

Chemo Centryx…………………       $10.00

Bright cove Inc…………………       $11.00

Bazaarvoice Inc………………..        $12.00

Greenway Medical Tech Inc……      $10.00

Caesars Entertainment………….         $9.00

a. Show the offer price data in a frequency table and construct the corresponding bar chart. Use x to represent the offer price and f(x) to count the number of IPOs at each price.

b. Compute the mean IPO offer price.

c. What is the median offer price?

d. Compute the variance and the standard deviation for the offer price data.