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2 years ago

Help me I’ll mark brainlist!!Please help!

Mathematics

1 answer:

DanielleElmas [232]2 years ago

5 0

The slope is 6 your welcome

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A fair coin is tossed 5000 times. What can you say about getting the outcome of exactly 2500 tails

WINSTONCH [101]

Step-by-step explanation:

You can't expect to get exactly 2500 out of 5000 tosses more than a few times . You will come pretty close, but that's only good in horseshoes.

Of course I'm answering this on the basis of a computer language and not actually performinig this a million tmes, each part of a million consisting of 5000 tosses.

Simulations and not completely unbiased, but based on experience, 5000 is a very small number and getting 2500 more than a couple of times is unlikely

6 0

2 years ago

Read 2 more answers

Help with this math question

ZanzabumX [31]

That easy 56.8.895 because when u add all the steps u find u answer so don’t let it fool u

5 0

2 years ago

Read 2 more answers

Deon is a software salesperson. His base salary is $1800 and he makes $80 more for every copy of Math is Fun he sells. His total

Vinvika [58]

(a) 34 copies

4520 = 1800 + 80c
2720 = 80c
34 = c

(b) $3,720

P = 1800 + 80(24)
P = 1800 + 1920
P = 3720

Let me know if you have questions about this

3 0

2 years ago

Find the y intercept of the line above.

NISA [10]

The y-intercept is (0, 2), because it's the spot where the line crosses the y-axis. The other point showed on the graph is the x-intercept..

6 0

2 years ago

A person recently read that 84% of cat owners are women. How large a sample should the researcher take if she wishes to be 90% c

Lana71 [14]

Answer:

405

Step-by-step explanation:

To find sample size, use the following equation, where n = sample size, za/2 = the critical value, p = probability of success, q = probability of failure, and E = margin of error.

$n=\frac{(z_{\frac{\alpha }{2} })^{2} *p*q }{E^2}$

The values that are given are p = 0.84 and E = 0.03.

You can solve for the critical value which is equal to the z-score of (1 - confidence level)/2. Use the calculator function of invNorm to find the z-score. The value will given with a negative sign, but you can ignore that.

(1 - 0.9) = 0.1/2 = 0.05

invNorm(0.05, 0, 1) = 1.645

You can also solve for q which is 1 - p. For this problem q = 1 - 0.84 = 0.16

Plug the values into the equation and solve for n.

$n =\frac{(1.645)^2*0.84*0.16}{(0.03)^2}\\n= 404.0997333$

Round up to the next number, giving you 405.

6 0

2 years ago