Suppose that a student needs to buy 6 books for her history course. the number of books that she will be able to find used is a binomial random variable x with n = 6 and p = 0.30. in other words, the probability that she will find any given book used is 0.30, and is independent from one book to the next. what is the probability that she will find more than 2 used books? 0.6760.2560.3240.744

Please see attached:

Probability is approximately: 0.256

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )