Answer:
1
Step-by-step explanation:
The y-coordinate is 4, so we count 4 units up the y-axis from the x-axis. You can also look at it as counting 4 units up from the origin. Then, we look at graph C. When y=4, when we're 4 units above the x-axis, x=1 since the point on the line falls 1 unit to the right of the y-axis.
I hope this helps!
Answer:
[B] A two-sample t -test for a difference between means.
Step-by-step explanation:
"<u>A two sample t test for a difference in means was conducted to investigate whether the average time to swim a lap with the freestyle stroke is different from the average time to swim a lap with the butterfly stroke</u>."
The expression is given to be:

Recall the multiplication rule of exponent given to be:

Therefore, we can simplify the numerator to be:

Hence, the expression becomes:

Recall the division rule of exponent given to be:

Therefore, the expression becomes:

Evaluating the answer, we have:

Therefore, the answer is:
Answer:
d it is D
Step-by-step explanation: