Answer:
Lorenzo's score on exam was 75.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 61
Standard Deviation, σ = 8
We are given that the distribution of test score is a bell shaped distribution that is a normal distribution.
Formula:

z-score = 1.75
We have to find the value of x.
Putting values, we get

Thus, Lorenzo's score on exam was 75.
Total number of outcomes of 7 from 10 = 10*9*8 / 3*2*1 = 120
probability of each outcoe is 0.85^7* (0.15)^(3) = 0.0010819
Required probability = 120 * 0.0010819 = 0.1298
1/32 ; 1/8 ; 1/2 ; 2 ; 8 ; ....
An = 2^2n-7
Pls. see attachment for the graph.
Answer:
18 3/4 kg of rice
Step-by-step explanation:
<u>Start</u>
<u>Day 1</u>
- He uses 1 3/4 kg of rice
- 25 - 1 3/4 = 23 1/4 kg remaining
<u>Day 2</u>
- He uses 4 1/2 kg of rice
- 23 1/4 - 4 1/2 = 18 3/4 kg of rice
<u>End</u>
You can buy 11 cakes with some money left over