Mode(s) - 7. Find the mean for cach of the following sets of numbers.
a. 8, 10, 13, 10, 9, 12, 11, 7
b. 10, 10, 10, 11, 10, 10, 9, 10
c. 2, 9, 20, 8, 7, 14, 1, 19
d. -30, 0, 100, 15, -50, -5, 60, -10
8. Use the set of numbers in Exercise #7(a) and do the following.
i. Take each number in the set and subtract the mean. (These values are called the deviations or
deviations from the mean).
ii. Square each of the deviations. (These are called the squared deviations.)
iii. Find the mean of the squared deviations. (This value is called the variance for the data set.)
iv. Take the square root of the variance. (This value is called the standard deviation.)
(ii) squared
deviations
(ii) variance:
original 6) deviations
numbers from the mean
8
10
13
10
9
(iv) standard deviation:
12
11
7

answer: b.

step-by-step explanation:

it is b. cause the equations are put in the right category

dude thats to long figure it

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.

i’m here for points.