Answer:
4(n+2)-1
Step-by-step explanation:
It says 1 less than 4 times of a sum of a number and 2. This indicated parenthesis (n+2)
so 4 times (n+2)
4(n+2)
It says one less of 4(n+2)
4(n+2)-1
I hope this helps!
Answer: I.Q. of 130 will have a z score (or standard score) of 2.
Step-by-step explanation:
Let X be a random variable that represents the I.Q. score.
Formula for Z-score : 
As per given, mean I.Q. = 100 and the standard deviation =15
For X = 130,
So, I.Q. of 130 will have a z score (or standard score) of 2.
We know that a cave is a big indent in the rock that curves inward
con, in latin, means something like 'with' or together'
so concave means with cave or curving with the cave or curving inward
Answer: We can be 95% confident that the true proportion of all college students gain weight in their freshman year.
Step-by-step explanation:
- A 95% confidence interval interprets that a person can be 95% confident that the true population parameter lies in it.
Given : A popular claim, nicknamed "freshman fifteen," states that many college students gain weight in their freshman year.
The 95% confidence interval as 55.9% < p < 78.4%.
Here : Population parameter = p , where p is the proportion of college students gain weight in their freshman year.
Interpretation of 95% confidence interval : We can be 95% confident that the true proportion of all college students gain weight in their freshman year.
Step-by-step explanation:
y int is -9. to graph slope think a our rise/run. change in y / change in x. move 5 units up per 3 units right. it's a positive slope to the graph is increasing towards the right
