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Citrus2011 [14]
3 years ago
8

Which statement is not true about the data shown by the box-and-whisker plot below?

Mathematics
1 answer:
Tom [10]3 years ago
7 0

Answer: The data point 25 lies in the first quartile of the date

Step-by-step explanation: The data point 25 is not in the data set.

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Consider a game in which you flip a coin. If it comes up heads, you earn 1 point; if it comes up tails, you earn 0 points. What
Sergeeva-Olga [200]

Answer:

C. 0.5

Step-by-step explanation:

Since a coin has 2 sides and there is the same probability of getting either side, then each side has a 50% or 0.5 probability. Therefore, in order to calculate the expected value of one coin flip we need to multiply the value of each side by its probability and add those values together like so...

1 * 0.5 = 0.5

0 * 0.5 = 0

Now we add these values together...

0.5 + 0 = 0.5

Finally, we can see that the expected value of one coin flip is 0.5

4 0
3 years ago
The half life of silicone-32 is 710 years. If 30 grams is present now, how much will be present in 300 years?
Irina18 [472]

Answer:

22.38 g of silicone-32 will be present in 300 years.

Step-by-step explanation:

A radioactive half-life refers to the amount of time it takes for half of the original isotope to decay and its given by

                                           N(t)=N_0(\frac{1}{2})^{\frac{t}{t_{1/2}}

where,

N(t) = quantity of the substance remaining

N_0 = initial quantity of the substance

t = time elapsed

t_{1/2} = half life of the substance

From the information given we know:

  • The initial quantity of silicone-32 is 30 g.
  • The time elapsed is 300 years.
  • The half life of silicone-32 is 710 years.

So, to find the quantity of silicone-32 remaining we apply the above equation

N(t)=30\left(\frac{1}{2}\right)^{\frac{300}{710}}=30\left(\frac{1}{2}\right)^{\frac{30}{71}}\approx22.38 \:g

22.38 g of silicone-32 will be present in 300 years.

7 0
3 years ago
Kristen worked 39 hours in 6 days
Fittoniya [83]
<h2>39/6 = 6.5</h2><h2 /><h2>6 hours 30 minutes</h2>
5 0
3 years ago
Read 2 more answers
Find The value of X to the nearest tenth<br> A 7.0<br> B 4.7<br> C 5.7<br> D 8.2
vredina [299]
Here is the correct answer, and explanation for how to get the answer, and a way to remember how to use them for next time :)

3 0
3 years ago
Or her comic books and then bought 8 more. She now has 13. How many did she begin with?
OLga [1]
13-8= 5 comic books to begin with,
is that the problem?
3 0
3 years ago
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