7/13/2020 Practice Test 2
21. The data given below show the number of overtime hours worked in one week per employee. Use the data to complete
parts (a) and (b).
Overtime hours
0
1
2
3
4
5
6
Employees
7
11 25 52 46 27 18
(a) Construct a probability distribution.
(b) Graph the probability distribution using a histogram and describe its shape.
(a) Construct the probability distribution by completing the table below.
3
5
6
2
0
х
1
P(x)
(Round to three decimal places as needed.)
(b) Choose the correct graph of the probability distribution.
OD.
OA.
OB.
0.4-
0.4-
0.4-
0.3-
0.2-
0.4
0.3-
0.2-
0.3-
Probability
0.3-
0.2-
Probability
Probability
0.2-
0.1-
0.1-
0.1-+
0.1-
0
0-
0
0-
0 1 2 3 4 5 6
Overtime Hours
0 1 2 3 4 5 6
Overtime Hours
0 1 2 3 4 5 6
Overtime Hours
0 1 2 3 4 5 6
Overtime Hours
Describe the distribution's shape. Choose the correct answer below.
skewed left
uniform
approximately symmetric (but not uniform)
skewed right

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

do your own work and don"t cheat.

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.