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motikmotik
3 years ago
10

Please help me I have no clue what’s going on lol

Mathematics
1 answer:
Nataly_w [17]3 years ago
3 0
Neither do i i just want points sorry mate
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The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to find out the fraction of peopl
Sholpan [36]

Answer:

1.) .399

2.) {.369, .429}

Step-by-step explanation:

The proportion of criminals in this sample that were caught was \frac{286}{716}=.39944, .399 rounded to three decimal places.

To construct the confidence interval, you need three pieces of information: the statistic, the critical value, and the standard error.

The statistic is given in the first part of the problem with the proportion of criminals in the sample that were caught was .399.

The critical value, we are told, is the z equivalent of 90%, or 1.645. You can find this value using a z table or with the inverse normal function on a calculator.

Finally, we need the standard error. The formula for standard error for a proportion with a single population is \sqrt{\frac{(proportion)(1-proportion)}{sample size} }so in this situation it would be \sqrt{\frac{(.399)(.601)}{716} }=.0183.

The confidence interval would be .399±.018×1.645 or .399±.030 {.369, .429}

5 0
3 years ago
How many triangles can be drawn with side lengths of 3 inches, 5 inches, and 6 inches???
storchak [24]

Answer:

4 congruent triangles

Step-by-step explanation:

since there is no one of the sum of two sides is less then the third side, so it's possible to form a triangle

Use straightedge and compass, it can draw 4 triangles at a common base

5 0
3 years ago
Help please!!!!!!!!!!!
AysviL [449]

Answer:

A. Plant 1 is growing at a faster rate than Plant 2.

Step-by-step explanation:

The slope (m) or rate of growth in Plant 1 is;

m = Change in y ÷ change in x

m =  \frac{3.5 - 1.5}{1 - 0} = 2

The linear equation of growth in Plant 1 is;

\frac{y - 1.5}{x - 0} = 2

y = 2x + 1.5

The equation of growth in Plant 2 is; y = 1.5x + 3 (slope of 1.5)

Since the slope in growth of Plant 1 is greater than that in Plant 2, it implies then that Plant 1 is growing at a faster rate than Plant 2.

7 0
3 years ago
Tim earns $280 every week in his paycheck. If he saves 10% of each
Alex73 [517]

Answer:

336

Step-by-step explanation:

10 times 280 over 100 equals 28 time 12 equals 336

6 0
3 years ago
Mrs. Haines paid $43.94 per gallon for 12.7 gallons of gas. She uses some credit card points to get $0.52 off per gallon. What i
rjkz [21]
3.98 cents a gallon this is a rounded to the nearest hundred
8 0
3 years ago
Read 2 more answers
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