Answer:
Step-by-step explanation:
2x + 1 = 5
2x = 4
x = 2
Answer: 0.688
Step-by-step explanation:
Given: Mean : 
Standard deviation : 
Sample size : 
We assume these lengths are normally distributed.
Then the formula to calculate the z score is given by :-

For X=501

The p-value of z =
Now, the probability of the newborns weighed between 1492 grams and 4976 grams is given by :-
Hence, The proportion of six-year-old rainbow trout are less than 501 millimeters long = 0.688
Answer:

Step-by-step explanation:
First, you must observe the figure attached.
You can identify that:

Then, you can solve for the variable "x" in order to find its value. Then, you get that this is:

You can also identify in the figure that:

Since you know the value of "x", you can substitute it into the equation:

Finally, you must solve for the variable "y" in order to find its value. So, you get:
