Mathematics, 31.05.2021 14:00 avavackity
(a) 175 जना मानिसहरूको एउटा समूहमा 90 जनाले काफल मन पराउछन् र 40% ले काफल मन पराउछन् तर ऐंसेलु
मन पराउदैनन् । यदि प्रत्येकले कम्तीमा एउटा मन पराउने भए,
In a group of 175 people, 90 liked strawberry and 40% liked strawberry but not the raspberry. If
every people likes at least one of them then,
(i) ऐंसेलु र काफल दुवै मनपराउने मानिसहरूको सङ्ख्या पत्ता लगाउनुहोस् ।
Find the number of students who like both raspberry and strawberry.
(ii) ऐंसेलु मन पराउने तर काफल मन नपराउने मानिसहरूको सङ्ख्या पत्ता लगाउनुहोस् ।
Find the number of students who like raspberry but not the strawberry.
Answers: 2
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Arandom sample of 15 observations is used to estimate the population mean. the sample mean and the standard deviation are calculated as 172 and 63, respectively. assume that the population is normally distributed. a. with 99 confidence, what is the margin of error for the estimation of the population mean? b. construct the 99% confidence interval for the population mean. c. construct the 95% confidence interval for the population mean. d. construct the 83% confidence interval for the population mean. hint: you need to use excel function =t.inv.2t to find the value of t for the interval calculation.
Answers: 1
(a) 175 जना मानिसहरूको एउटा समूहमा 90 जनाले काफल मन पराउछन् र 40% ले काफल मन पराउछन् तर ऐंसेलु
मन प...
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