The table below shows data from a survey about the amount of times students spend doing homework each week. The students were either in college or in high school: Which of the choices below best describes how to measure the spread of this data?

A- Both spreads are best described with the IQR.

B- Both spreads are best described with the standard deviation.

C- The college spread is best described by the IQR. The high school spread is best described by the standard deviation.

D- The college spread is best described by the standard deviation. The high school spread is best described by the IQR.

in table data from a survey about the amount of time students spend doing homework each week. The students were either in college or in high school: High Low Q1 Q3 IQR Median Mean σ

College 50 5 7.5 15 7.5 11 13.8 6.4

High School16 0 9.5 14.5 5 13 10.7 5.3 Both spreads are best described with the standard deviation.

Step-by-step explanation:

answer: 457.14

step-by-step explanation:

205 - 45 = 160

160 / .35 = 457.142857

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.