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pav-90 [236]
2 years ago
10

When a disease is rare in the general population, doctors are not likely to test everyone. Instead, they only test people that h

ave specific risk factors or show symptoms of the disease. Even if resources are available, why do you think doctors would avoid giving a test for a rare disease to everyone in the general population? Explain using ideas from probability that were explored in this project
Mathematics
1 answer:
rewona [7]2 years ago
7 0
Pleasee thanks thisss pleaseee :) thanks
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Ticket Taker Tony collects 90 tickets in 5 minutes. Ticket Taker Tina collects 128 tickets in 8 minutes. Which ticket taker coll
SpyIntel [72]

Answer:

Ticket Taker Tony collects more tickets per minute.

Step-by-step explanation:

In order to find out which ticket taker collects more tickets per minute, you need to solve for how many tickets each Ticket Taker collects per minute to compare.  Since 90:5 and 128:8 are different ratios, you need to find the unit rate, or how many tickets each collects per minute.  To find unit rate, you divide the numerator by the denominator:

Ticket Taker Tony:  \frac{90 tickets}{5 minutes} = \frac{18 tickets}{1 minute}

Ticket Taker Tina:  \frac{128 tickets}{8 minutes} = \frac{16 tickets}{1 minute}

Every minute, Tony collects 18 tickets, while Tina only collects 16, so Ticket Taker Tony collects more.  

6 0
3 years ago
Mohsin, Yusuf and Luke are going to play a game.
Rufina [12.5K]

Answer:

luke would go first mohsin would come second and Yusuf would go third so the secret is its going by alphabetical order

3 0
3 years ago
A certain insecticide kills 60% of all insects in laboratory experiments. A sample of 12 insects is exposed to the insecticide i
Vilka [71]

Answer:

The probability that exactly 10 insects will die

                     P( X = 10 ) = 0.06385        

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given a certain insecticide kills 60% of all insects in laboratory experiments

Given proportion  p = 0.60

                           q = 1 - 0.60 = 0.40

Given sample size 'n' = 12

<u><em>Step(ii):</em></u>-

Let "X' be the random variable of binomial distribution

                              P(X=r) = n_{C_{r} } p^{r} q^{n-r}

The probability that exactly 10 insects will die

                              P(X=10) = 12_{C_{10} } (0.60)^{10} (0.40)^{12-10}

                           

                          n_{C_{r} } = \frac{n!}{(n-r)!r!} = \frac{12!}{(12-10)!10!} = 66

                          P(X=10) = 66 X (0.60)^{10} (0.40)^{2} = 0.06385

<u><em>Final answer:</em></u>-

The probability that exactly 10 insects will die

                     P( X = 10 ) = 0.06385        

4 0
3 years ago
6(4-z)=2z<br><br><br> show work<br><br><br> please help
Stolb23 [73]

Answer:

Step-by-step explanation:

Distribute: 6(4-z) expands to 24-6z

24-6z=2z: Add 6z to both sides to get 24=8z

Divide both sides by 8: z=3

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At a museum cafe you can get a pre-made boxed lunch with a sandwich, fruit, and drink for only $3.
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C because so and so is this and that
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