This is not a question!!!!!!!!!
please delete this one
Answer: 1.A 2.B 3.A
Step-by-step explanation: if im wrong correct me hope this helps
Answer:
0.0215
Step-by-step explanation:
The average weekly wage is $400 and the standard deviation is:
$50
The z-score for $250 is given by:
Plug in the values to get:
The z-score of $300 is
The probability of earning less than:
$250 is
P(X<250)=0.0013, we got this by reading -3 under zero on the standard normal distribution table.
Similarly:
P(X<300)=0.0228
P(250<X<300)=0.0228-0.0013=0.0215
Therefore the probability that a workeep makes between 250 and 300 dollars is 2.15%
Answer:
<em>9.6 × </em><em> </em>
Step-by-step explanation:
(7.584 × ) ÷ (7.9 × 10²) = ( 7.584 ÷ 7.9) × ( ÷ 10²) = 0.96 × = <em>9.6 × </em><em> </em>
The answer is 2^12 = 4096.
Look at a tree diagram. With one spin there are two possible outcomes (branches). Every time you spin, each of the branches split into two more branches.
With 12 spins, first there are 2 branches, then 2*2, then 2*2*2, ... In the end it's 2^12