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kupik [55]
3 years ago
11

Imagine you have a classmate who has never had an introduction to statistics in a math course. Explain to that person how the pr

obability of selecting a red tile is determined. Use complete
Mathematics
1 answer:
Tamiku [17]3 years ago
8 0

Answer:

Probability of selecting red tile out of a box containing 3 red,2 white & 5 black tiles = 3/10 = 0.3

Step-by-step explanation:

Probability is the calculation of likelihood of an event.

It can be calculated by Formula : Favourable outcome / Total Outcomes

Example : If a box contain 3 red tiles, 2 white tiles, 5 black tiles

Prob (selecting a red tile) = Favourable outcome (red tiles) / Total Outcomes (total tiles) = 3 / 10 = 0.3

Similarly, prob (white tile) & prob (black tile) = 2/10 ie 0.2 & 5/10 ie 0.5 respectively

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Select all of the following expressions that are equivalent to 9 to the 1/2 power
daser333 [38]

Step-by-step explanation:

x to the power of 1/2 means sqrt(x) (square root).

so, 9 to the power of 1/2 = sqrt(9) = 3.

therefore, we are looking for expressions that are also 3.

3 to the power of 1/2 = sqrt(3).

sqrt(3) × sqrt(3) = 3

this is correct

27 = 3×3×3

so, the cubic root would be 3 and correct, but the 6th root is incorrect.

27 to the power of 1/3 means the cubic root of 27, which is 3. but this is still multiplied by 3 to the power of 1/2 (sqrt(3)). so, the result is not 3 and therefore incorrect.

81 to the power of 1/2 = sqrt(81) = 9

9×9 = 81 and not 3. this is therefore incorrect.

729 to the power of 1/6 is the 6th root of 729, which is 3. this is therefore correct.

81 to the power of 1/3 means the cubic root of 81. but 81 is not a cubic number, and also multiplying this again with the cubic root of 81 is not 3. this is therefore incorrect.

81 to the power of 1/4 means the 4th root of 81. which is the square root of the square root.

the square root of 81 = 9. and the square root of 9 = 3.

3×3 = 9 and not 3. this is therefore incorrect.

5 0
2 years ago
In a certain​ state, 50​% of adults indicated that sausage is their favorite pizza. Suppose a simple random sample of adults in
KatRina [158]

Answer:

n = 23

x = 17

p = 0.50

Step-by-step explanation:

For a binomial experiment we have the following variables:

<u>1) Number of trials or Sample size:</u>

The number of trials is represented by n. In the given scenario 23 adults were asked about their favorite pizza, so the number of trials in this will be 23. Thus

n = 23

<u>2) Number of success</u>

The number of success is denoted by x. Number of success indicates that how many trials resulted in the favorable outcome. In the given case, choosing a sausage pizza is a success. Since 17 adults chose the sausage, so

x = 17

<u>3) Probability of success on single trial</u>

This is represented by p. It is stated that 50% adults say sausage is their favorite pizza. So,

p = 50% = 0.50

4 0
3 years ago
the jenkins familys monthly budget is shown in the circle graph the family has a monthly income of 4800 how much money do they s
9966 [12]
There is no graph brother, please provide a graph and i can help you
5 0
3 years ago
Read 2 more answers
Please help me with this problem​
baherus [9]

Answer:

650 + 22.50x = 1887.50  x = 55 hours

Step-by-step explanation:

1887.50 - 650 = 1237.5

1237.5 / 22.50 = 55

She needs to work 55 hours to obtain $1887.50 if she already has $650.

3 0
2 years ago
Hi, I'm often really slow at learning math and my condition makes it harder, can someone help me?
NARA [144]
The answer: 0, 4/5 and 5


Explanation: first, we factor out 2x and get: 2x(5x^2-29x+20)=0

In order for this equation to be equal to zero, either 2x must equal to zero or (5x^2-29x+20) must equal to zero

Having said that, if:
2x = 0
X=0

If:
(5x^2-29x+20) = 0
X=4/6, x=5

7 0
2 years ago
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