Answer:
1/26
Step-by-step explanation:
This is a case of joint probability. We find the two probabilities separately and then multiply the results together:
P(odd number on cube) = 3/6 = 1/2; P(7 from a deck)) = 13/52 = 1/13
Then the desired joint probability is (1/2)(1/13) = 1/26
Note that the two events here are entirely separate and independent.
Regrouping in subtraction means that if you can't subtract because the digit on the bottom has a greater value than the digit on the top (such as 3-6)m so in this case you would have to regroup twice.
Answer:
The Zscore for both test is the same
Step-by-step explanation:
Given that :
TEST 1:
score (x) = 75
Mean (m) = 65
Standard deviation (s) = 8
TEST 2:
score (x) = 75
Mean (m) = 70
Standard deviation (s) = 4
USING the relation to obtain the standardized score :
Zscore = (x - m) / s
TEST 1:
Zscore = (75 - 65) / 8
Zscore = 10/8
Zscore = 1.25
TEST 2:
Zscore = (75 - 70) / 4
Zscore = 5/4
Zscore = 1.25
The standardized score for both test is the same.
Answer:
letter po
3(-11)-6 -33-6 -39
---------- = ---------- = ---------- = 13
3 3 3
7(-11)-6 -77-6 -83
---------- = ---------- = ---------- = 13
3 3 6