In a large population of college students, 20% of the students have experienced feelings of math anxiety. if you take a random sample of 10 students from this population, the standard deviation of the number of students in the sample who have experienced math anxiety is:

Hey there!:

The number of students in the sample who have experienced math anxiety is a binomial distribution  

Bin (n , p) where n = 10 and p = 0.2  

The mean of a binomial distribution is np = 2  

The variance is np (1- p) = 1.6 so the standard deviation is √ 1.6 = 1.265  

mean=2; standard deviation= 1.265

Hope this helps!

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.