Laboratory technicians are testing ears of sweet corn to see if the hybrid corn they're evaluating has more kernels than normal corn. Each ear of corn has 16 rows of kernels. The number of kernels per row on the 20 ears they sampled are listed here: 49, 52, 48, 52, 54, 51, 53, 53, 53, 51, 52, 52, 50, 51, 51, 53, 52, 46, 48, 52 What's the average number of kernels per row in the sample of ears? A. 51.15 B. 51.25 C. 50.45 D. 50.85

A. 51.15.

Step-by-step explanation:

Number of ears, n = 20

Samples = 49, 52, 48, 52, 54, 51, 53, 53, 53, 51, 52, 52, 50, 51, 51, 53, 52, 46, 48, 52

Average = summation of sample/n

= (49 + 52 + 48 + 52 + 54 + 51 + 53 + 53 + 53 + 51 + 52 + 52 + 50 + 51 + 51 + 53 + 52 + 46 + 48 + 52)/20

= 1023/20

= 51.15

answer:

c. the third graph

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)