I scanned it with an answer finder! Hope this helps
Answer:
0.7857
Step-by-step explanation:
Given :
Mean = 69 inches
Standard deviation, = 2.8 inches
The Zscore of a man who is 71.2 inches
The ZSCORE is obtained using the relation :
Zscore = (Score, x - mean) / standard deviation
Zscore = (71.2 - 69) / 2.8
Zscore = 2.2 / 2.8
Zscore = 0.7857
Answer:
84
Step-by-step explanation:
37 + 47 = 84
The probability of an event is calculated as = 
Here, the total number of outcomes = 12 red marbles + 8 blue marbles + 5 green marbles
So, total marbles = 25 marbles
Number of favorable or green marbles = 5 marbles
Probability of three green marbles if drawn with replacement =
×
× 
Probability of three green marbles if drawn with replacement =
×
× 
Probability of three green marbles if drawn with replacement = 