What is the formula for the expected number of successes in a binomial experiment with n trials and probability of success p? Choose the correct forumla below.

A. Upper E (Upper X )equalsStartRoot np (1 minus p )EndRoot
B. Upper E (Upper X )equalsp Superscript n
C. Upper E (Upper X )equals (1 minus p )Superscript n(1 minus p )Superscript n
D. Upper E (Upper X )equalsnp

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720

d 600 because 15*10*2=300

300+300=600

step-by-step explanation: