It is believed that 11% of all Americans are left-handed. In a random sample of 350 students from a particular college with 35810 students, 31 were left-handed. Find a 95% confidence interval for the percentage of all students at this particular college who are left-handed.

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

Solutions for 2x+7 less than or equal to 3x-5

What is the expression in factored form? -20x^2 - 12x a. 4x(5x+3) b. -4x(5x-3) c. -4(5x+3) d. -4x(5x+3)