28. baby talk: in a sample of 77 children, the mean age at which
they first began to combine words was 16.51 months, with a
standard deviation of 9.59 months.
a. construct a 95% confidence interval for the mean age at
which children first begin to combine words.
b. if a sample of 50 children had been studied, would you
expect the confidence interval to be wider or narrower
than the interval constructed in part (a)? explain.

The probability of winning something on a single play at a slot machine is 0.11. after 4 plays on the slot machine, what is the probability of winning at least once

Write and solve a real word problem that involves determining distance on a coordinate plane

The description below represents function a and the table represents function b: function a the function is 5 more than 3 times x. function b x y −1 2 0 5 1 8 which statement is correct about the slope and y-intercept of the two functions? (1 point) their slopes are equal but y-intercepts are not equal. their slopes are not equal but y-intercepts are equal. both slopes and y intercepts are equal. neither slopes nor y-intercepts are equal.