Seven more than twice a number. Hopes this helps mate <3
-Maddy
Answer:
For a sample size of 10, the t-value is about 3.25 (from tables) at a 99% confidence interval.
Explanation:
When the standard deviation for the population is not known, the confidence interval estimate for the population mean is performed with the Student's t-distribution.
The confidence interval for the mean is calculated as

where

= sample mean,
s = sample standard deviation,
t = t-value (provided in tables),
n = sample size.
When reading the t-value, (n-1) is called the df or degrees of freedom.
Answer:
A third of 9 is 3.
Step-by-step explanation:
9 / 3 = 3.
3 * 3 = 9
The y intercept is 0, and the slope is 5x.
Equation: y = 5x +0.