Answer:
the dividend is 2x^3 + 10x^2 + x + 5
Step-by-step explanation:
I took the test and I got a 100%
The measures of spread include the range, quartiles and the interquartile range, variance and standard deviation. Let's consider each one by one.
<u>Interquartile Range: </u>
Given the Data -> First Quartile = 2, Third Quartile = 5
Interquartile Range = 5 - 2 = 3
<u>Range:</u> 8 - 1 = 7
<u>Variance: </u>
We start by determining the mean,
![\:1+\:2+\:3+\:3+\:3+\:5+\:8 / 7 = 3.57](https://tex.z-dn.net/?f=%5C%3A1%2B%5C%3A2%2B%5C%3A3%2B%5C%3A3%2B%5C%3A3%2B%5C%3A5%2B%5C%3A8%20%2F%207%20%3D%203.57)
n = number of numbers in the set
Solving for the sum of squares is a long process, so I will skip over that portion and go right into solving for the variance.
![\sum _{i=1}^n\frac{\left(x_i-\bar{x}\right)^2}{n-1},\\\\=> SS/n - 1\\\\=> 31.714/7 - 1\\=> 5.28571](https://tex.z-dn.net/?f=%5Csum%20_%7Bi%3D1%7D%5En%5Cfrac%7B%5Cleft%28x_i-%5Cbar%7Bx%7D%5Cright%29%5E2%7D%7Bn-1%7D%2C%5C%5C%5C%5C%3D%3E%20SS%2Fn%20-%201%5C%5C%5C%5C%3D%3E%2031.714%2F7%20-%201%5C%5C%3D%3E%205.28571)
5.3
<u>Standard Deviation</u>
We take the square root of the variance,
![\sqrt{5.28571} = 2.29906](https://tex.z-dn.net/?f=%5Csqrt%7B5.28571%7D%20%3D%202.29906)
2.3
If you are not familiar with variance and standard deviation, just leave it.
Answer:
Because we don't know the exact shape of the population distribution since they are not Normally distributed and they are also not very non-Normal
Step-by-step explanation:
We are given;
Population standard deviation;μ = 200
Population standard deviation; σ = 35
Sample size; n = 30
We are told that the weights are not Normally distributed and they are also not very non-Normal. Therefore it means we don't know the exact shape of the population distribution and as such we can't calculate the probability that a randomly selected passenger weighs more than 200 pounds.
Answer:
1995.26
Step-by-step explanation:
It usually works to follow instructions:
3.3 = log(x) . . . . . substitute known values into the equation
10^3.3 = x . . . . . take antilogs
1995.26 = x . . . . simplify, round to hundredths
6) subtract 16 on both sides
then it should be x/4>18
then you would times 18 by 4 and get
c as the answer
7) the answer is d.
because 52-12 is 40 and 52/4 is 13