Let Χ be normally distributed with a mean of 120 and standard deviation of 25. What is the Probability that X will be less than160. Suppose a sample of 26 students were selected, what is the probability that X will be greater than 125.

2: 10

step-by-step explanation:

60: 45 =12: 9 =4: 3 so the answer is 4: 3

step-by-step explanation:

total income = price of one ticket   *   number of tickets sold

  y                 =     4                                   x

so the equation is y=4x     with x≥0   because number of tickets sold can not be negative

thus the equation is a semi -line with an end point at

(0,0)

passing through :

x=1     y=4(1) = 4   so through (1,4)