You'll have to work out the area under the normal curve that maps to the range 2975-3050. So we have to scale the numbers to the world of the standard normal curve.
Step 1: subtract the mean, so that 0 is our mean. This means the range changes to -25..+50. (can you see that I subtracted 3000?)
Step 2: Divide by the standard deviation 38, so that the new sd becomes 1.
This means our range becomes -0.66 to 1.32.
Now we have values that we can lookup in the standard normal table. This has to happen in two steps. First we lookup the probability for Z < 1.32, then we subtract the probability for Z<-0.66.
0.9066 - 0.2546 = <span>0.652 or 65.2%</span>
Answer:
108
Step-by-step explanation:
24/3 equals 8 and 300/3 is 100
Answer:
Here you go
Step-by-step explanation:
