Mathematics, 24.11.2020 01:30 vperez719

Recall information from the previous task. One study of 91 bald eagle eggs found that the eggs had a mean length of 73.6 millimeters and standard deviation of 2.9 millimeters. One bald eagle egg was 74.9 millimeters long. The Z-score for this egg was 0.45.

Which statements correctly interpret the Z-score?

Choose two correct answers.

The length of this egg was 0.45 standard deviations above the mean length.

This egg was 0.45 millimeters longer than the mean.

This egg was longer than 45 percent of the eggs in the study.

This egg was longer than the mean by 0.45 standard deviations, or 1.3 millimeters.

The length of this egg was 0.45 times the mean.

Answers: 2

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Answer from: Quest

answer:

total cost for tiles and paints is $924.

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

$\text{area of walls and ceiling}=(2*40*15)+(2*3*15)+(40*3)$

$\text{area of walls and ceiling}=1200+90+120$

$\text{area of walls and ceiling}=1410$

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

$\text{ the total painting cost}=10*(\frac{1410}{25})$

$\text{ the total painting cost}=10*56.4=564$

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

$\text{area of floor} = 40*3\text{ square meters}$

$\text{area of floor} =120\text{ square meters}$

given: 1m squared floor tiles costs $3. so,

$\text{total cost for tiles} = 3*120 = 360$

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

$\text{combined total cost}= 564+360 = 924$

therefore, the combined total cost of tiles and paint is $924.

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Recall information from the previous task. One study of 91 bald eagle eggs found that the eggs had a...