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vivado [14]
3 years ago
6

Mark spins a penny 100 times and it lands head side up 41 times. Explain why Mark's experimental probability may be different fr

om the theoretical probability of spinning a coin.
Mathematics
2 answers:
astra-53 [7]3 years ago
4 0

Answer:

Hey there!

This is because the theoretical probability is different from the experimental probability. The theoretical probability is what is expected, but the experimental probability is what actually happens.

Hope this helps :)

Tamiku [17]3 years ago
3 0

Answer:

Step-by-step explanation:

One possible explanation would be that the penny was less than perfect, that is, not perfectly balanced, not perfectly round, and the surface on which the penny was spun was slightly uneven.  So, the number of actual, observed heads (41/100) differed from the theoretical probability of getting heads, which would be 50/100, or 0.50.

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Please answer this in two minutes
diamong [38]

Answer:

366.6 mm²

Step-by-step explanation:

Step 1: find XY using the Law of sines.

Thus,

\frac{XY}{sin(W)} = \frac{WY}{sin(X)}

m < W = 180 - (70+43) (sum of angles in a triangle)

W = 180 - 113 = 67°

WY = 24 mm

X = 43°

XY = ?

\frac{XY}{sin(67)} = \frac{24}{sin(43)}

Cross multiply:

XY*sin(43) = 24*sin(67)

XY*0.68 = 24*0.92

Divide both sides by 0.68 to solve for XY

\frac{XY*0.68}{0.68} = \frac{24*0.92}{0.68}

XY = 32.47

XY ≈ 32.5 mm

Step 2: find the area using the formula, ½*XY*WY*sin(Y).

Area = ½*32.5*24*sin(70)

Area = ½*32.5*24*0.94

= 32.5*12*0.94

Area = 366.6 mm² (nearest tenth)

6 0
3 years ago
Using rounding to estimate the solution to the problem. 538-714 Be sure to give the estimated solution, not the exact solution.
amid [387]

Answer:

1. -370

2. 70

3. 10.75

4. 6700

5. 37.26

Step-by-step explanation:

1. Estimating the solution means round the numbers to the nearest ten, then subtract the rounded numbers.

2. Same thing as #1

3. Using long division, it should be quite easy. If you need more evaluation, comment and I'll answer.

4. To the nearest hundred, you write the closest exact hundred. example: 8334 would be rounded to 8300.

5. To the nearest hundredth, you write the closest exact hundredth. example: 65.734 would be rounded to 65.73

Hope this helped, good luck!

5 0
3 years ago
In an ordered pair, the y-coordinate tells you how far to move from the origin parallel to the______. X-axis/y-axis​
erastova [34]

Answer:

  y-axis

Step-by-step explanation:

The x-coordinate is the location of a point as measured along the x-axis. The y-coordinate is the location of a point as measured along the y-axis.

__

Another way to describe the y-coordinate is that it <em>tells you how far to move from the origin parallel to the </em><em>y-axis</em>.

5 0
2 years ago
A Ferris wheel can accommodate 65 people in 30 minutes how many people could ride the Ferris wheel in 2 hours what was the rate
erik [133]

65 \times 4 = 260
260 can ride the ferris wheel in 2 hours.
65 \times 2 = 130
130 people is the rate per hour.
5 0
3 years ago
During the first 3 days of the week, Mike read an average of 28 pages per day. During the next 4 days, Mike averaged 42 pages pe
Anestetic [448]

Answer:

36 pages per day on average

Step-by-step explanation:

Calculate the average.

3 * 28 (The first 3 days of the week where Mike reads 28 pages per day) = 84

4 * 42 (The next 4 days where Mike reads 42 pages per day ) = 168

168 + 84 = 252



To find the average using this total, divide it by the total amount of days of reading (seven days in this problem).

252 / 7 = 36

6 0
2 years ago
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