A researcher conducts an experiment to examine the effect of a new fertilizer on plant growth. She applies the fertilizer at regular intervals to 68 pepper plants. Another 59 plants receives just water. Which of the following statements provide a valid conclusion that can be drawn from the dotplots? Check all that apply. Group of answer choices The fertilizer had a negative effect on the plant height because the shortest plant is in the fertilizer group. The fertilizer had inconsistent results. The group treated with fertilizer had more variability in height than the untreated group. We cannot compare the two groups because they didn’t contain the same number of plants. The fertilizer had positive results on plant height. The median height is larger for the fertilizer group.

step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40