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vekshin1
3 years ago
12

A random sample of 50 four-year-olds attending day care centers provided a yearly tuition average of $3987 and the population st

andard deviation of $630. Find the 90% confidence interval of the true mean
SAT
1 answer:
Viktor [21]3 years ago
3 0
3000   is the p-*5#%?"+(                                          
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In a bag of red and blue sweets, the ratio of red sweets to blue sweets is 3:4. If the bug contains 120 blue sweets, how many bl
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If there are 120 blue sweets then going by the ratio 3:4, there are 90 red sweets

Explanation:

Red sweets : Blue sweets = 3:4

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》 Red sweets = 3 × 30 = 90

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