Which statements are true about the curve? check all that apply. o the standard deviation of the data is 64. o the variance of the data is 49. o the median is 64. o the data point 75 is less than one standard deviation from the mean. the data point 50 is two standard deviations away from the mean.

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.

I’m confused on how to work the pie charts

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?