About 10% of people in the United States have type B blood. Suppose we take a random sample of 120 U. S. residents, and let X = the number of residents in the sample who have type B blood. 1. Calculate the mean of the sampling distribution of X.

8 2/3 is the answer

step-by-step explanation: just use a calculator

total of apples - take away four

6-4 = 2

answer is 2 apples

explanation:

step-by-step explanation:

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.

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,

therefore, the total painting cost is $564.

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

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

therefore, the total tiles cost is $360.

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

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