6.2.15-E Question Help According to eMarketer, adults in the United States spent an average of 92 minutes per day on social media platforms Facebook, Snapchat, and Instagram in 2017. Assume that minutes per day on these platforms follow a normal distribution with a standard deviation of 25. Complete parts a through d. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. a. What is the probability that the amount of time spent today on social media platforms by a particular U.S. adult is less than 70 minutes? The probability is. (Round to four decimal places as needed.) (? Enter your answer in the answer box and then click Check Answer. Check Answer parts Clear All 3 remaining MacBook Air