EVALUARE SUMATIVĂ S
Scrie exercițiile reprezentate pe numărători, apoi calculează.
mln
DO
DOD
DO
S-2 B-4
ПОТ
ПОТ
=
FB-6
EXERCIȚII REZOLVATE CORECT
2. Calculează si completează tabelele.
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Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

Find the amount in a continuously compounded account for the given condition. principal: $1000, annual interest rate: 4.8%, time: 2 yr

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?