Answer:
1. 13+18+13+14+13+16+14+21+13
= 145/9
=16.11
2. Range =145
3. Mode =13
4. Median =14
Step-by-step explanation:
Answer:
Z=11.0
Step-by-step explanation:
Let Caucasian individuals be the population 1 and African American be the population 2. So, we are given that
n=150
n1=75
mean1=xbar1=6.1.
standard deviation1=S.D1=σ1=1.1.
Variance1=V(x1)=σ1²=1.1²=1.21.
n2=75.
mean2=xbar2=4.3.
standard deviation2=S.D2=σ2=0.9.
Variance2=V(x2)=σ2²=0.9²=0.81.
The z-statistic is





Z=10.97
Z=11.0
So, the z value obtained while calculating the test statistic is approximately 11.0.
Answer:
x = 8/9
Step-by-step explanation:
6(3x - 4) = -8
Distribute the 6
18x -24 = -8
Add 24 to each side
18x -24+24 = -8+24
18x = 16
Divide each side by 18
18x/18 =16/18
Simplify the fraction by dividing top and bottom by 2
x = 8/9
4.2 because of the pathagreom therom thingy (idk how to spell it)
but a^2 + b^2 = c^2