Question

How hot does it get in Death Valley? The following data are taken from a study conducted by the National Park System, of which Death Valley is a unit. The ground temperatures (°F) were taken from May to November in the vicinity of Furnace Creek. Compute the mean, median, and mode for these ground temperatures. (Enter your answers to one decimal place.)

145	151	170	175	185	179	180
185	179	170	179	167	151	143

mean
median
mode

Answer 1

Answer:

Given that:

145	151	170	175	185	179	180
185	179	170	179	167	151	143

Mean:

Mean

Mean

Median

Observations in the ascending order are :
143,145,151,151,167,170,170,175,179,179,179,180,185,185

Here, n = 14 is even

M = ( Value of ( n / 2 ) th observation+Value of ( n / 2 +1 ) th observation) 2

= ( Value of ( 7 ) th observation+Value of ( 8) th observation) 2

= ( 170 +175)

= 345/ 2

= 172.5

Median = 172.5

Mode :

In the given data, the observation 179 occurs maximum number of times (3)