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asambeis [7]
3 years ago
15

A medical researcher wants to determine the percentage of females who take vitamins. He wishes to be 99% confident the estimate

is within 2% points of the true proportion. A recent study of 180 females showed that 25% took vitamins.
A) how large should the sample size be?

B) if no estimate of the sample proportion is available how large should the sample be?
Mathematics
1 answer:
12345 [234]3 years ago
8 0
B. i think is the answer
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Translate the inequality and solve. Negative three times a number is less than six.
mart [117]

Answer:

x>-2

Step-by-step explanation:

The translated inequality to be solved is -3x<6

You divide -3 by both sides which switches the sign because it is negative, there fore the answer is x>-2.

4 0
3 years ago
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Step-by-step explanation:

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6 0
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Wewaii [24]
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4 0
3 years ago
Find the distance between each pair of points
dolphi86 [110]

Answer: the correct answer is 20

Step-by-step explanation:

The formula for determining the distance between two points on a straight line is expressed as

Distance = √(x2 - x1)² + (y2 - y1)²

Where

x2 represents final value of x on the horizontal axis

x1 represents initial value of x on the horizontal axis.

y2 represents final value of y on the vertical axis.

y1 represents initial value of y on the vertical axis.

From the graph given,

x2 = - 7

x1 = 5

y2 = - 7

y1 = 9

Therefore,

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Distance = √(- 12²) + (- 16)²

= √(144 + 256) = √400

Distance = 20

5 0
3 years ago
Anyone know the area??
Diano4ka-milaya [45]
Area= 1/2(base)(height)
A= 1/2(7)(2)
A= (1*2*7)/2
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A= 7 units squared

Hope this helps! :)
3 0
3 years ago
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