I’m not 100% sure but part a is 144 part b is the composite
Answer:
1
Step-by-step explanation:
= 
(as 
)
= 1
256363 okay i don’t know just try okay
Answer:
Right answer is choice D.
Answer:
72
Step-by-step explanation:
For Q 1 : 25 % of the scores are below this value. The area under the bell-shaped curve of the normal distribution is 0.25. And since we have 288 electricians that took a certification test:
0.25 * 288 = 72.
