Is that 2/3 of q or 2 over 3q?
for 2/3 of q. q=1/2 x 3/2 =3/4=0.75
for 2 over 3q q = 2 x 2/3= 4/3=1.3333
Answer:
The mean and standard deviation of Y are, 94 and 0.28 respectively.
Step-by-step explanation:
Let the random variable , 'Test grades on the last statistics exam' be X.
Then according to the question,
E(X) = 78 ------------(1)
and
= 0.14------------(2)
Now, according to the question,
Y = 2(X - 31)
⇒E(Y) = 2(E(X) - 31)
=
= 94 ----------------(4)
and
V(Y) = 4V(X)
⇒
⇒ = 0.28
So, the mean and standard deviation of Y are, 94 and 0.28 respectively.
- The seniors in the class is 6.
- The juniors that went on the field trip is 6 students.
- There is not enough information to determine the seniors that went on the field trip.
-
<h3>How many seniors are in the class?</h3>
Seniors in the class = total number of students - total number of juniors
30 - 24 = 6
Juniors that went on the field trip = 2/3 x 24 = 16 students
To learn more about subtraction, please check: brainly.com/question/854115
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Joni pays an annual interest of 5%, which means that in three years, the interest is 15%.
Let us assume that the amount Joni borrowed is m.
After three years, the interest is $30.
15% of the amount m = $30
0.15m = 30
m = 30/0.15 = 200
Therefore, Jodi originally borrowed $200.
Answer:
-3
Step-by-step explanation:
should be -3 because thw angle is in the 3rd quadrant around the -3 if not its -7 nothing positive though