Answer:
A
Step-by-step explanation:
A. Here is why:
In a function, each x maps to exactly one value of y.
In B and C, x = -3 maps to both -1 and 2, is they are not functions.
Answer:
The confidence interval for the true mean calorie content is
Step-by-step explanation:
In this problem we know the mean and standard deviation fo the sample, so we can compute the CI like this:
We need to determine t for 10-1=9 degrees of freedom and 99% confidence level. We look up in the t-table and the value for t is 3.2498.
Then we can calculate the limits of the CI:
Look to the number to the right of the place you're rounding. Rounding to the thousandths, look to the ten thousandths place and if the number Is 5 or greater, round the thousandths place up. 4 or less, round down. For your number, ten thousandths place is 9 so the thousandths place is rounded up.
93.013
12 feet below would be -12. from -12 to 0 would be 12 feet.
from 0 to 32 above would be 32 feet.
Total distance = 12 + 32 = 44 feet.
About $4.17 or $4.20
Hope this helps!
Comment if you have questions!
