Answer:
B. 8/10 = 80%
Step-by-step explanation:
number of sample space ( that is the total of the results)
n(s) = 10
the question says <u>at least two</u> of the puppies will be female.
let heads,h, = female puppies
then, we check the results;
number of at least two h [n( at least two h)] = hhhh, tthh, hhtt, thth, htth, hhht, hhtt, hthh.
n( at least two h) = 8
probability of at least two of the puppies will be female ( pr of at least h) =<u> n( at least h )</u>
n(s)
= <u> </u><u> </u><u> </u><u>8</u><u> </u><u> </u> = 80%
10