The partially filled contingency table gives the frequencies of the data on age (in years) and sex from the residents of a retirement home. 60-69 70-79 Over 79 Total Male 14 6 5 Female 6 5 4 Total

What is the relative frequency for males?

a. 23/40
b. 5/4
c. 8
d. 21/40

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125

Which of the following is the result of expanding the series

In the diagram, gef and hef are congruent. what is the value of x