Answer:
The correct answer is - C. 24.1%
Step-by-step explanation:
Given:
mean μ = 65%
standard deviation δ = 7.1 %
solution:
Prob( X>70) = 1 - Prob(x<70)
= P (x-μ/δ ≥ 70 -65/7.1)
= 1 - Prob( (70-65)/7.1)
= 1 - Prob ( z < 0.7042553)
= 0.24065
the percentage of students scoring 70 or more in the exam
= 24.065*100
= 24.1%
Answer:
Sendiks.
Step-by-step explanation:
Sendiks- 6 ÷ 3.80= $1.58 per can
Sam's Club- 12÷6.90= $1.74 per can
Answer:
4(6+10)
Step-by-step explanation:
4×6=24
4×10=40
Answer:
7.875......7.9.....or 8
Step-by-step explanation:
-3÷2×-21÷4= 7.875
63÷8=7.875