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harkovskaia [24]

3 years ago

9

A psychology class consists of 14 males and 36 females. if the professor selects name from the class list using random sampling,

what is the probability that the first student selected will be a female

1 answer:

Pavel [41]3 years ago

3 0

The total number of students is 14+36, or 50. So the chance that a selected student is female is 36/50, or 18/25.

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I need help on this 6th grade math problem

vivado [14]

Answer: x<17.5

Step-by-step explanation:

Subtract from both sides: x+2.5-2.5<20-2.5

Simplify the arithmetic: x<20-2.5

Simplify the arithmetic: x<17.5

Hope it helps!

4 0

1 year ago

Read 2 more answers

Let B1W2 denote the outcome that the first ball drawn is B1 and the second ball drawn is W2. Because the first ball is replaced

Sati [7]

Answer:

$\{B_1B_1, B_1B_2, B_1W_1, B_1W_2, B_1W_3, \\B_2B_1, B_2B_2, B_2W_1, B_2W_2, B_2W_3, \\$

$W_1B_1,W_1B_2, W_1W_1, W_1W_2, W_1W_3, \\W_2B_1, W_2B_2, W_2W_1,W_2W_2, W_2W_3, \\W_3B_1, W_3B_2, W_3W_1, W_3W_2, W_3W_3\}$

Step-by-step explanation:

$\text{If an urn contains two blue balls} (denoted \:B_1 \:and \:B_2) \text{and three white balls}$ , $(denoted \:W_1, W_2, \:and\: W_3)$

If One ball is drawn, its color is recorded, and it is replaced in the urn. Then another ball is drawn and its color is recorded.

The 25 Possible outcomes of this experiment are listed below:

$\{B_1B_1, B_1B_2, B_1W_1, B_1W_2, B_1W_3, \\B_2B_1, B_2B_2, B_2W_1, B_2W_2, B_2W_3, \\$

$W_1B_1,W_1B_2, W_1W_1, W_1W_2, W_1W_3, \\W_2B_1, W_2B_2, W_2W_1,W_2W_2, W_2W_3, \\W_3B_1, W_3B_2, W_3W_1, W_3W_2, W_3W_3\}$

The tree diagram of this event is also attached.

6 0

3 years ago

What number is missing from the table of equivalent ratios?

algol [13]

Answer:

A) 4

Step-by-step explanation:

10 divided by 2 = 5

15 divided by 3 = 5

so 20 divided by 4 = 5

6 0

3 years ago

Read 2 more answers

Is 6740 divisible by 3 and 10

Aloiza [94]

I hope this helps you

6740/10=674

6740/3=2,246666

7 0

2 years ago

In a cylindrical wooden block with a radius of 7 cm and a height of 14 cm, hemispherical blocks with

Sunny_sXe [5.5K]

9514 1404 393

Answer:

1372π/3 cm^3 ≈ 1436.8 cm^3

Step-by-step explanation:

The diameter and height of the cylinder are both 14 cm. The resulting solid will be a 14 cm sphere. Its volume is ...

V = 4/3πr^3 = 4/3π(7 cm)^3 = 1372π/3 cm^3 ≈ 1436.8 cm^3

4 0

2 years ago