We use the t-distribution to calculate a con dence interval for the population mean . If we increase the sample size from 10 to 20, the interval would become smaller because of A. the change in degrees of freedom. B. the change in standard error. C. both A and B. D. none of the above.

option: d is correct

step-by-step explanation:

step-by-step explanation:

x-intercept:

(

−

1

+

√

7

,

0

)

,

(

−

1

−

√

7

,

0

)

y-intercept:

(

0

,

−

6

)

measurement of the swimming pool is given as = 7 yards 4.79 feet

first we will convert this to yards only.

1 foot = 0.33 yards

so, 4.79 feet = yards

so total yards are = yards

now we will convert this in meters.

1 yard = 0.914 meters

8.580 yards = meters

0.842 m = 0.842*100 = 84.2 cm

this becomes 7 meters and 84.2 cm

hence, the pool is 7 meters and 84.2 cm wide.

answer: simile

step-by-step explanation: the difference between simile and metaphor is a simile describes with "as" and "like"