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2 years ago

PLEASE HELP QUICKLY!!! WILL MARK AS BRANLYEST

Mathematics

1 answer:

topjm [15]2 years ago

8 0

The answer appears to be A.

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susan took two tests.the probability of her passing both tests is 0.6.the probability of her passing the first test is 0.8.what

OverLord2011 [107]

Formula for this is as follows:
probability of her passing both 0.6/0.8 - first test and this is a fraction. 0.6/0.8
0.6/0.8= divide 0.6 by 0.8=0.75
that means probability of her passing the second test is 75%

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1 year ago

The results of a race car are shown. Determine who drove the fastest. Explain.

monitta

We have to calculate speed for 1 lap for all of 'em.

Cutwright - 84/35 = 2.4 mins for 1 lap

Evans- 96.6/42 = 2.3 mins for 1 lap

Liza- 102.6/38 = 2.7 mins for 1 lap

So, EVANS drove fastest among them as he took less time...

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1 year ago

Read 2 more answers

The weights of certain machine components are normally distributed with a mean of 8.01 g and a standard deviation of 0.06 g. Fin

Free_Kalibri [48]

Answer:

Option D) 7.90 g and 8.12 g

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 8.01 g

Standard Deviation, σ = 0.06 g

We are given that the distribution of weights is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.03

P(X > x)

$P( X > x) = P( z > \displaystyle\frac{x - 8.01}{0.06})=0.03$

$= 1 -P( z \leq \displaystyle\frac{x - 8.01}{0.06})=0.03$

$=P( z \leq \displaystyle\frac{x - 8.01}{0.06})=0.97$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 8.01}{0.06} = 1.881\\\\x = 8.12$

Thus, 8.17 g separates the top 3% of the weights.

P(X < x)

$P( X < x) = P( z < \displaystyle\frac{x - 8.01}{0.06})=0.03$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 8.01}{0.06} = -1.881\\\\x = 7.90$

Thus, 7.90 separates the bottom 3% of the weights.

Thus, the correct answer is

Option D) 7.90 g and 8.12 g

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2 years ago

Vonna scored 36 goals in her soccer kicking practice. If her success-to-failure rate was 9:8, how many times did she attempt

makvit [3.9K]

Answer:

42 i think

Step-by-step explanation:

this is sssniperwolf im on to talk to fans

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2 years ago

Malachy, Gavin and Gavyn share £18 in a ratio 3:1:2. How much money does each person get?

Drupady [299]

Answer:

Step-by-step explanation:

18×(3/6) = 918×(1/6) = 318×(2/6) = 6

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1 year ago