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3 years ago

67.77759 rounded to nearest meter

Mathematics

2 answers:

stira [4]3 years ago

8 0

Sbajsbisws hsbwks hawk sisswiajaa s

AlekseyPX3 years ago

7 0

Answer:

Step-by-step explanation:

0.7 rounds to 1 so add 1 to 67 to get 68

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A group of volunteers for a clinical trial consists of 81 women and 77 men. 18 of the women and 19 of the men have high blood pr

OlgaM077 [116]

Answer:

0.22

Step-by-step explanation:

Let the events be:

A: the person is a woman

B: the person has high blood pressure

We want to find P(B/A), that is, the probability that a person has high blood pressure given that is a woman. We can use the following theorem:

P(B/A) = P(A∩B)/P(A)

P(A∩B) is the probability that a person is a woman and has high blood pressure. Given that there are 18 women with high blood pressure and 158 persons in total (81 + 77),

P(A∩B) = 18/158

P(A) is the probability that a person is a woman. Given there are 81 women and 158 persons in total,

P(A) = 81/158

P(B/A) = P(A∩B)/P(A)

P(B/A) = (18/158)/(81/158) = 0.22

3 0

3 years ago

Is it True or false?

gtnhenbr [62]

Answer: False

Step-by-step explanation: right triangles need two equal angles and one different.

7 0

2 years ago

A manufacturer knows that their items have a normally distributed lifespan, with a mean of 7.8 years, and standard deviation of

den301095 [7]

The probability of 6 years or more, so we want the complement,

1 - 0.98533 = 0.01467 1.467% chance, not very likely.

<h3>What is Z-score?</h3>

A z score is a type of statistical measurement that gives an idea of how far a raw score is from the mean of a distribution. A z score is used in a z test for hypothesis testing.

Here, Because you are looking for the mean of a group of 7.8, the standard deviation will shrink by a factor of √6

Old standard deviation = 0.7,

new standard deviation = 0.7/√6 = 0.64254

You need to find a z-score and then convert your z-score to a probability.

z-score = (your score - average)/ std dev

z-score = (7.8 - 6)/0.64254

z-score = 2.1789

To convert a z-score either look it up on a table or use a calculator.

But z-tables are designed to shade to the left, which means this is the probability that the mean life is 6 years or less. We want the probability of 6 years or more, so we want the complement, 1 - 0.98533 = 0.01467

1.467% chance, not very likely.

Learn more about Z-score from:

brainly.com/question/15016913

#SPJ1

3 0

3 years ago

Stacy performed an experiment in which she rolled a six-sided die multiple times. The results are shown below

user100 [1]

Answer:

5/9

Step-by-step explanation:

Let the probability of getting a multiple of 3 is "A"

Let the probability of getting an even number is "B"

Total number of outcomes=36

Total number of favourable outcomes of either a multiple of 3 or an even number are

(1,1) ,(1,2) ,(2,1) ,(1,3) ,(3,1) ,(2,2) ,(1,5) (5,1) ,(3,3) ,(2,4) ,(4,2) ,(2,6) ,(6,2) ,(3,5) ,(5,3) ,(4,4) ,(6,4) ,(4,6) ,(5,5) ,(6,6)

That is we have 20 favourable outcomes

Hence, Probability=\frac{\text{favourable outcomes}}{\text{total number of outcomes}}Probability=

total number of outcomes

favourable outcomes

Therefore, after substituting the values we get

probability=\frac{20}{36}probability=

After simplification we will get

probability=\frac{5}{9}probability=

3 0

3 years ago

Which of the following is the solution to the problem 2/3x = 12

Vikki [24]

$3 \times 2 \div 3 \times = 12 \times 3 \\ 2x = 36 \\ x = 18$

3 0

4 years ago

Read 2 more answers