Answer:
The probability that it will weigh more than 904 grams = 0.9452
Step-by-step explanation:
Given -
Mean
= 920 grams
Standard deviation
=10
Let X be the weight of a certain brand of adult cereal
if we select one box of cereal at random from this population
The probability that it will weigh more than 904 grams =
= 
=
Putting 
=
Using Z table
= 1 - .0548
= 0.9452
Answer:
-8
Step-by-step explanation:
np
Answer:
-6m and -6k
Step-by-step explanation:
(5k - 7) = -2k (k - 4) = -4k + -2k = -6k. (3m - 9) = -6m.
This problem deals with a weighted average. Since the AP classes count twice as much as regular classes, their grades must be counted twice. It's as if for each AP class he's taking, he was taking two classes. The points of each AP class grade is added twice, and the each AP class counts as 2 classes in the number of classes.
Each AP class counts twice and counts as 2 classes.
Class Ben's grade Points Number of Classes
AP English B 3 + 3 2
AP Government B 3 + 3 2
AP Algebra II A 4 + 4 2
Spanish B 3 1
Physics D 1 1
TOTALS 24 8
GPA = (total points)/(number of classes) = 24/8 = 3
<span>Answer: B 3.0</span>