"The table below shows the offer price for 10 recent IPOs (source: biz.yahoo.com).

CompanyOffer

PriceProto Labs Inc $16.00

Annie's Inc $19.00

Splunk Inc $17.00

Demandware Inc $16.00

EPAM Systems $12.00

ChemoCentryx $10.00

Brightcove Inc $11.00

Bazaarvoice Inc $12.00

Greenway MedicalTech 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 num-ber 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. "