Question

A survey of prices for external disk drives found the accompanying​ data, where 1 TBequals 1000 gigabytes. Some research on the prices discovered that the 210 GB hard drive was a special​ "hardened" drive designed to resist physical shocks. Because it is completely different from the other​ drives, it was removed from the data. The correlation is now 0.995 and other summary statistics are shown in the accompanying popup window. Complete parts a and b.

Capacity (in TB)	Price (in $)
0.05	24.49
0.09	27.99
0.21	181.55
0.26	55.45
0.38	51.55
2	179
3	322.55
4	418.49

a) If a drive has a capacity of

6.23

TB​ (or

3

SD above the mean of

1.40

​TB), how many standard deviations above or below the mean price of

​$154.22

do you expect the drive to​ cost?

The expected cost is

nothing

standard deviations

▼

below

above

the mean price.

​(Type an integer or decimal rounded to two decimal places as​ needed.)

​b) To what price does that​ correspond?

​$nothing

​(Round to the nearest cent as​ needed.)

Answer 1