Each year advertisers spend billions of dollars purchasing ...

[stevenposner]

Each year advertisers spend billions of dollars purchasing commercial time on network
  television. In the first 6 months of one year, advertisers spent 1.1 billion.
 
  Who were the largest
  spenders? In a recent article, the top 10 leading spenders and how much each spent (in million of
  dollars) were listed:
  Company A 70.7 Company F 24.8
  Company B 63.9 Company G 24
  Company C 55.7 Company H 22.7
  Company D 54.2 Company I 23.2
  Company E 30.3 Company J 20.1
  Calculate the sample variance.
  A) 389.965 B) 3763.035 C) 1864.521 D) 2080.829

Question 2

A one -week study revealed that 60 of a warehouse store's customers are women and that 30
  of women customers spend at least 250 on a single visit to the store.
 
  Find the probability that a
  randomly chosen customer will be a woman who spends at least 250.
  A) 0.50 B) 0.36 C) 0.18 D) 0.90

[manuelcastillo]

Answer to Question 1

A

Answer to Question 2

C

[stevenposner]

Wow, this really help

[xiaomengxian]

Thanks for the timely response, appreciate it