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3 years ago

11

Two bags each contain black and white marbles, as shown below. If Karl draws one marble from each bag, what is the probability t

hat they will both be black?
A.3/7
B.1/6
C.11/12
D.3

2 answers:

Elden [556K]3 years ago

8 0

Answer:

The answer is A

Step-by-step explanation:

Hope this helps!

:)

Romashka [77]3 years ago

3 0

Answer:

I think A. But I'm not 100% sure.

Step-by-step explanation:

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2 years ago

Karen wants to advertise how many chocolate chips are in each big chip cookie at her bakery. she randomly selects a sample of 69

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Step-by-step explanation:

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The formula to confidence interval is given by : -

$\overline{x}\pm z_{\alpha/2}\dfrac{s}{\sqrt{n}}\\\\\Rightarrow\ 10.6\pm (1.96)\dfrac{1.7}{\sqrt{69}}\\\\\approx10.6\pm0.4011=(10.6-0.4011,10.6+0.4011)=(10.1989,\ 11.0011)$

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