<u>Solution and Explanation:</u>
a) 51% of users of mobile phones use their phone at least once per hour,
It is a binomial distribution with n = 150, p = 0.51
mean = np = 150 multiply with 0.51 = 76.5
SD= sqrt(np(1-p) )= 6.1225
Since np and n(1-p) > 5, we can assume the distribution is normal.
B) please see the attached file.
c) It is a binomial distribution with n = 150, p = 0.02
mean = np = 150*0.02 = 3
SD= sqrt(np(1-p) )= 1.71464
Since np < 5, we cannot assume the distribution is normal.
Answer:
Group of choices:
a. Media sharing
b. Blog
c. Content aggregator
d. Mass media
The correct answer is c. Content aggregator
.
Explanation:
Feedly is considered to be a content aggregator site because all of its information is derived from external sources. In a broader sense, content aggregators are tools that allow information to be collected in order to locate it in a specific place. One of the advantages is that it allows having the information in the same place, which saves time for those who are interested in the same or similar topics.
Answer:
Prices increase, C
Explanation:
Inflation is when the value of a dollar, or other currency type, drops. This happens most commonly when more money is being printed. The more there is, the less it is worth. This causes prices to increase.
Hope this helps
Answer:
True
Explanation:
Experiments regarding consumer behavior have shown that consumers usually expect a product to have a certain price that serves as a reference price that they use to determine if a retailer's price is high (more expensive than the reference price) or low (cheaper than the reference price).
It is normal (but unethical) that some retailers increase their prices a little before starting a sales campaign, since a higher reference price will make consumers believe that the offer is even better.
