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ValentinkaMS [17]
3 years ago
15

Answer the question based on the data in the two-way table.

Mathematics
1 answer:
Masteriza [31]3 years ago
3 0

Answer:

d

Step-by-step explanation:

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One of the radioactive isotopes used in chemical and medical research is iodine-125, which has a half-life of 61 days. how long
Oksana_A [137]

Answer:122 days

Step-by-step explanation:

5 0
1 year ago
George Martin loves The Beatles. Honestly, who doesn’t? On George’s favorite Spotify playlist, 40% of the songs are by The Beatl
makvit [3.9K]

Answer:

17.5%

Step-by-step explanation:

First of all, see this situation as a cumulative binomial distribution. You have isolated trials with a probability of success. This makes it binomial. The wording of the question "what is the probability of at least half..." makes this cumulative.

There are a few ways to calculate this, and I'm not quite sure which way you're familiar with. I'll show the cumbersome way and use wolfram to make the calculation.

First, I'll calculate the probability for 15 success, given 30 trials.

30c15*0.4^15*0.6^15

Since the question asks for the probability of at least 15 success, I'll have to make a calculation for the probability of 16 successes, then 17, and so on. Then I'll have to add all the probabilities together. So, I'll use wolfram for that (see attached)

7 0
3 years ago
A town's population is 38,200. About 100 people move out of the town each month. Each month, 150
Svetach [21]

Answer:

in 11 months

Step-by-step explanation:

y=50x+38,200

y=-150x + 40,400

6 0
3 years ago
Read 2 more answers
S
Korolek [52]

Answer:

D

Step-by-step explanation:

If its right let me know I think this is right

8 0
3 years ago
Help me please I’m struggling
Alinara [238K]
It is a function because every input has exactly one output. It passes the vertical line test.

If you plotted another point at 2 hours it would no longer be a function bc 2 would be an input they had more than one output.
3 0
3 years ago
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