Answer:
405
Step-by-step explanation:
To find sample size, use the following equation, where n = sample size, za/2 = the critical value, p = probability of success, q = probability of failure, and E = margin of error.
The values that are given are p = 0.84 and E = 0.03.
You can solve for the critical value which is equal to the z-score of (1 - confidence level)/2. Use the calculator function of invNorm to find the z-score. The value will given with a negative sign, but you can ignore that.
(1 - 0.9) = 0.1/2 = 0.05
invNorm(0.05, 0, 1) = 1.645
You can also solve for q which is 1 - p. For this problem q = 1 - 0.84 = 0.16
Plug the values into the equation and solve for n.
Round up to the next number, giving you 405.
Sorry i don’t know if it’s me but i can’t see the picture.
Answer:
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Ratio
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cookies : candies
5 : 7
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Multiply Ratio by 2
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cookies : candies
5 x 2 : 7 x 2
10 : 14
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Multiply Ratio by 3
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cookies : candies
5 x 3 : 7 x 3
15 : 21
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Multiply Ratio by 4
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cookies : candies
5 x 4 : 7 x 4
20 : 28
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Answer: C
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Step-by-step explanation:
please mark brainliest
Answer:
2.456x10^11
Step-by-step explanation:
