Let the random variable x be normally distributed with mean 55, as shown in the following diagram.
the shaded region between 52 and 55 represents 26% of the distribution.
a) find p(x< 52).
b) find the standard deviation of x.
(for anyone who solves this, work it out in your answer.)

With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.