Answer:
Ij and 8
Step-by-step explanation:
SOLUTION
From the given data the mean is 62 and standard deviation is 4
It is required to find the probability that a data value is between 57 and 62
That is:
The z scores is calculated using:
Using the x values it follows:
Also,
Thus the required probability is:
![P(-1.25The proability is:[tex]P(-1.25This can be expressed as percentage as:[tex]P(-1.25\lt z\lt0.75)=66.8\%](https://tex.z-dn.net/?f=P%28-1.25The%20proability%20is%3A%5Btex%5DP%28-1.25This%20can%20be%20expressed%20as%20percentage%20as%3A%5Btex%5DP%28-1.25%5Clt%20z%5Clt0.75%29%3D66.8%5C%25)
Therefore the correct option is C
Answer:
Step-by-step explanation:
Answer:
76 hamburgers were sold
Step-by-step explanation:
total sold: 228
ratio of cheeseburgers to hamburgers sold: 2:1
2+1=3 to find total of ratio
228÷3= 76 to find the value of 1 part in the ratio
because hamburgers sold was only 1 part, the answer is 76
We know Summer had $24 to start with. To find how much she spent, subtract.
24 - 10 = $14 (the amount she spent)
Now, divide to find how much each pencil cost.
14 / 7 = $2 per pencil.
Best of Luck!
