The average temp is 22 in july and negative 11 in jan find the range of highest and lowest temperature

Giving ad is congruent to bc and angle bcd is congruent to angle adc prove d e is going to ce

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

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4