Answer:
it is C
Step-by-step explanation:
Answer:
920 points.
Step-by-step explanation:
We have been given that the mean score for a standardized test is 800 and the standard deviation is 120. To qualify for a special summer camp for accelerated students, a student must score within the top 16% of all scores on the test.
First of all we will find probability of 0.16 using normal distribution table.
Using normal distribution our Z score will be 0.994458
Now we will use raw-score formula to find the score (x) that a student must make to qualify for summer camp.

Upon substituting our given values in above formula we will get,


Upon rounding to nearest whole number we will get,

Therefore, a student must make 920 points to qualify for summer camp.
9514 1404 393
Answer:
C. 2 2/5
Step-by-step explanation:
Put in the given value of y and solve for x.
6 = 5x -6
12 = 5x . . . . . . . . . add 6
12/5 = x = 2 2/5 . . . divide by 5, express as mixed number
Answer:
A: 4
Step-by-step explanation:
You see,, in ratios, the divisor is always the same and in our case, it's 3 . you just divide 12 with the divisor