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crimeas [40]
3 years ago
13

Which of the following statements are true? Select all that apply.

Mathematics
1 answer:
tigry1 [53]3 years ago
8 0

Answer:

a,d

Step-by-step explanation:

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When Bunny and Walter came home from practice, there was a note from their mother sitting on top of a pizza box. “Had to run to
leva [86]

9514 1404 393

Answer:

  3/8 pizza

Step-by-step explanation:

If 1/4 of the 4/4 of the pizza was gone, 3/4 remained. When that is split in half, each half is (3/4)(1/2) = 3/8 of the pizza.

Each gets 3/8 of the pizza.

7 0
3 years ago
Suppose that 15% of the fields in a given agricultural area are infested with the sweet potato whitefly. One hundred fields in t
hram777 [196]

Answer:

a.\mu=15

b.\mu=7.8586 \ and  \ \mu=22.1414

c. Choice A- Based on limits above, it is unlikely that we would see x = 45, so it might be possible that the trials are not independent.

Step-by-step explanation:

a.Binomial distribution is defined by the expression

P(X=k)=C_k^n.p^k.(1-p)^{n-k}

Let n be the number of trials,n=100

and p be the probability of success,p=15\%

The mean of a binomial distribution is the probability x sample size.

\mu=np=100\times0.15=15

b.Limits within which p is approximately 95%

sd of a binomial distribution is given as:\sigma=\sqrt npq\\q=1-p

Therefore, \sigma=\sqrt(100\times0.015\times0.85)=3.5707

Use the empirical rule to find the limits. From the rule, approximately 95% of the observations are within to standard deviations from mean.

sd_1=>\mu-2\sigma=15-2\times3.3507=7.8586\\sd_2=>\mu-2\sigma=15+2\times3.3507=22.1414

Hence, approximately 95% of the observations are within 7.8586 and 22.1414 (areas of infestation).

c.  x=45 is not within the limits in b above (7.8586,22.1414). X=45 appears to be a large area of infestation. A.Based on limits above, it is unlikely that we would see x = 45, so it might be possible that the trials are not independent.

4 0
3 years ago
Dan has 3 ⅔ cups of milk. If he used ¼ of the milk for his breakfast, how much milk does Dan have left?
riadik2000 [5.3K]

There would be 3 2/12 left.

2/3 x 1/4 = 2/12

Hope this helps!

Sorryyyy :C

6 0
3 years ago
Read 2 more answers
On Monday the market sells 3 ½ pounds of grapes and 4 ⅘ pounds on Tuesday. How many pounds of grapes does the market sell?
blondinia [14]

3.5 pounds + 4.8 pounds = 8.3 pounds

8 0
2 years ago
Read 2 more answers
The sequence 200, 100, 50, 25, ... has a common ratio of
disa [49]

Answer:

200/2 = 100

100/2 = 50

50/2 = 25

Everything is being divided by two

5 0
2 years ago
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