- Question 4 It Is Known That 70 Of One Year Old Children Distinguish Their Mother S Voice From The Voice Of A Similar So 1 (32.74 KiB) Viewed 27 times
QUESTION 4 It is known that 70% of one-year-old children distinguish their mother's voice from the voice of a similar sounding femaile. A random sample of 20 one year-olds are given this voice recognition test. What is the probability that 15 childen can recognize their mother's vocie. A. 0.821 OB. 1 C.0.179 OD. 0.5 O E. None of the rest QUESTION 5 Refer to Question 4. Among the 20 children in the sample, the mean number of children who can recognize their mother's voice is O A. 20 ОВ. 3 O C. 17 OD.6 O E. 14