According to the Center for Disease Control (CDC), about 3 in 86 children in the United States. have been diagnosed with autism. Suppose you consider a group of 19 children, by letting X = be the number of children having autism. a. . Find the probability that seven have autism.

b. Find the probability that at least five have autism

This estimate is a 15% increase from the 1 in 68 rate in 2010, 86% increase from the 1 in 110 rate in 2006 and 154% increase from the 1 in 150 rate in 2000. Diagnostic criteria of ASD has changed significantly since the 1980s; for example, U.S. special-education autism classification was introduced in 1994.

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

the answer is su.k.my? ? co.kc