Find z such that 22% of the area under the standard normal curve lies to the right of z. (round your answer to two decimal places.)

z=0.77

Step-by-step explanation:

If 22% of the area under the standard normal curve lies to the right of z, 78% lies to the left.

According to a one-sided z-score table:

If z-score = 0.77 the area under the curve is 77.94%

If z-score = 0.78 the area under the curve is 78.23%

Since only two decimal plates are required, there is no need to actually interpolate the values, just verify which one is closer to 78%

Since 77.94% is closer, a z-score of 0.77 represents a 22% area under the standard normal curve to the right of z.

step-by-step explanation:

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.