Answer:
I would say Nokia
Explanation:
Nolia was the first to create an SMS text message in 1993.
sorry if I am wrong :c
Answer: a)Purchased from a vendor and gives you the right to use the software but is not yours to own.
Explanation: Proprietary software is the software that can be used by the user but it has copyright of the vendor/holder in any case.There are some certain condition under which the user can use this software.The distribution of the software is not permitted in this case. No modification or manipulation can be done by the user.
Other options are incorrect because it is not free as its purchased from vendor ,not freely available rather guided by owner and can be used over certain period of time.Thus , the correct option is option(a).
Answer:
A- ASYMMETRIC KEYS
Explanation:
Assymmetric keys are public keys that are use for encryption. They are public keys which may be disseminated or share widely, they are usually know by everyone. The keys come in pairs in which what one key encrypts, only the other can decrypt.
Asymmetric keys allows someone to send their public key in an open and insecure channel.
Answer:
3.59 minutes
Explanation:
We solve this question using z score formula
Using Excel
Z-SCORE= (DataPoint-AVERAGE(DataSet))/STDEV(DataSet)
IN EXCEL,
AVERAGE, an excel function that calculates the Average of data set
STDEV.S: calculates the standard deviation while treating the data as a ‘sample’ of a population.
STDEV.P: This function calculates the standard deviation while treating the data as the entire population.
Z score formula = x - μ/σ
x = ?? μ = 2.5 minutes σ = 0.5 minutes
We are asked : If 1.5% of the callers are put on hold for longer than x minutes, what is the value of x?
Hence, Longer than = Greater than =
100 - 1.5%
= 100 - 0.015
= 0.985 ( 98.5%)
Using Excel we calculate = z score for 98.5 percentile
= 2.1701
Z score = x - μ/σ
2.1701 = x - 2.5/0.5
2.1701 × 0.5 = x - 2.5
1.08505 = x - 2.5
x = 1.08505 + 2.5
x = 3.58505
Approximately to 2 decimal places = 3.59 minutes
Therefore, 1.5% of the callers are put on hold for longer than 3.59 minutes.
