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Strike441 [17]
3 years ago
8

A researcher is studying a group of field mice. the distribution of the weight of field mice is approximately normal with mean 2

5 grams and standard deviation 4 grams. which of the following is closest to the proportion of field mice with a weight greater than 33 grams?
a)0.046
b)0.977
c)0.954
d)0.023​
Mathematics
2 answers:
Svetllana [295]3 years ago
4 0

Answer:

b

Step-by-step explanation:

morpeh [17]3 years ago
3 0

Answer:

B

Step-by-step explanation:

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Suppose that in a certain county 37% of voters are registered as Democrats, 29% as Republicans, 7% as Green party, and the rest
Fantom [35]

Answer:

0.66

Step-by-step explanation:

GIVEN: Suppose that in a certain county 37\% of voters are registered as Democrats, 29\% as Republicans, 7\% as Green party, and the rest are considered Independents. You conduct a poll by calling registered voters in the county at random.

TO FIND: Probability that the first call will be to either a Democrat or a Republican.

SOLUTION:

Lets total population of county be 100x.

voters registered as Democrats =37\%=\frac{37}{100}\times100x

                                                     =37x

voters registered as Republicans =29\%=\frac{29}{100}\times100x

                                                       =29x

voters registered as Green party =7\%=\frac{7}{100}\times100x

                                                       =7x

Probability that first call will be to Democrats P(A)=\frac{\text{total democrats}}{\text{total voters}}

                                                                                    =\frac{37x}{100x}=0.37

Probability that first call will be to Republican P(B)=\frac{\text{total republicans}}{\text{total voters}}

                                                                                     =\frac{29x}{100x}=0.29

probability that the first call will be to either a Democrat or a Republican

=P(A)+P(B)

=0.37+0.29

=0.66

Hence the probability that the first call will be to either a Democrat or a Republican is 0.66

6 0
3 years ago
A large rectangular office measures 9 yards by 15 yards. What is the area of the office?
vova2212 [387]

Answer:

135

Step-by-step explanation: 9x15=135

4 0
2 years ago
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Find the quotient and remainder for 52 divided by 8
leva [86]
52/8 is 6.5 on a calculator, hope this helps
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A line has a slope of zero and passes through the point (-2,6)
Lera25 [3.4K]

Answer:

y = 6

Step-by-step explanation:

If the slope of a line is zero, then it is a horizontal line. This means that the line will have a constant y value for all x, hence the equation of the line is y = 6

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