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allochka39001 [22]
2 years ago
9

For graph f what is f(0)?

Mathematics
1 answer:
Darina [25.2K]2 years ago
3 0

Answer:

2

Step-by-step explanation:

The function shows a point at 2 where x = 0.

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liberstina [14]
The -3 in f(-3) is the X coordinate, so you need to find where the line is on the Y coordinate at that point.

The line is at Y = -9 
3 0
3 years ago
−6.2<−4.5, yet |−6.2|>|−4.5|. Use a number line to show why.
romanna [79]

Answer:

-27.9

Step-by-step explanation:

3 0
3 years ago
A sample of 1500 computer chips revealed that 32% of the chips do not fail in the first 1000 hours of their use. The company's p
Grace [21]

Answer:

Yes, we have sufficient evidence at the 0.02 level to support the company's claim.

Step-by-step explanation:

We are given that a sample of 1500 computer chips revealed that 32% of the chips do not fail in the first 1000 hours of their use. The company's promotional literature claimed that above 29% do not fail in the first 1000 hours of their use.

Let Null Hypothesis, H_0 : p \leq 0.29  {means that less than or equal to 29% do not fail in the first 1000 hours of their use}

Alternate Hypothesis, H_1 : p > 0.29  {means that more than 29% do not fail in the first 1000 hours of their use}

The test statics that will be used here is One-sample proportions test;

          T.S. = \frac{\hat p -p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }  ~ N(0,1)

where, \hat p = proportion of chips that do not fail in the first 1000 hours of their use = 32%

            n = sample of chips = 1500

So, <u>test statistics</u> = \frac{0.32-0.29}{\sqrt{\frac{0.32(1-0.32)}{1500} } }

                              = 2.491

<em>Now, at 0.02 level of significance the z table gives critical value of 2.054. Since our test statistics is more than the critical value of z so we have sufficient evidence to reject null hypothesis as it fall in the rejection region.</em>

Therefore, we conclude that more than 29% do not fail in the first 1000 hours of their use which means we have sufficient evidence at the 0.02 level to support the company's claim.

7 0
3 years ago
20<br> Find the median for the set of numbers:<br> 53, 22, 76, 46, 68, 32, 15, 29
kolezko [41]
The answer/median is 39
8 0
3 years ago
Please Help Quick!!!
Anvisha [2.4K]

Answer:0.16 and 6%


Step-by-step explanation:


3 0
3 years ago
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