Suppose the round-trip airfare between Boston and Orlando follows the normal probability distribution with a mean of $387.20 and a standard deviation of $68.50. What is the probability that a randomly selected airfare between Boston and San Francisco will be less than $300

P < 300 = 0.102

Step-by-step explanation:

Suppose the round-trip airfare between Boston and Orlando follows the normal probability distribution, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = the round-trip airfare between Boston and Orlando.

µ = mean

σ = standard deviation

From the information given,

µ = $387.20

σ = $68.50

The probability that a randomly selected airfare between Boston and San Francisco will be less than $300 is expressed as

P < 300

For x = 300,

z = (300 - 387.20)/68.5 = - 1.27

Looking at the normal distribution table, the probability corresponding to the z score is 0.102

the transverse axis of a hyperbola is the line that contains the two vertices and the two focuses.

in this example (hyperbola of equation x^2/2 - y^2/4 = 1), the transverse axis is the  x-axis  . 

step-by-step explanation:

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.