Answer:
Option a is right
Step-by-step explanation:
Given that a random sample of 250 men yielded 175 who said they'd ridden a motorcycle at some time in their lives, while a similar sample of 215 women yielded only 43 that had done so.
For proportions since binomial and sample size large we can use z critical values.
Sample I II
N 250 215 465
X 175 43 218
p 0.7 0.2 0.4688
p difference = 0.5
Std error of difference = 
Margin of error for 99% = 2.58*std error = 0.105
Confidence interval 99% = (0.5±0.105)
Option a is right.
Answer:
5
16 is the answer of this problem
Domain: (-∞, ∞), {x|x ∑ r}
Range: (-∞, 0), {y|y < 0}
Hope this helps! :)
Answer:
x=2
x=-5
Step-by-step explanation:
1
Move terms to the left side
2
Subtract the numbers
3
Use the sum-product pattern
4
Factor
5
Create two separate equations
6
Solve
First you would do 2 times 18 then just add 5 to that and you get 41, so the original number Jim picked was 18