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14. The number of absences from June to March of a student based on
his class adviser's record is shown below.
Month No. of Absences Month No. of Absences
June
November
2
July
2
December
1
August
1
January
4
September
3
February
1
October
March
If X be the random variable representing the number of absences. Which
table represents the probability distribution?
A.
1
2
3
P(X)
2/10
2/10
3/10
3/10
В.
1
2
3/10
3
3/10
PX)
1/10
3/10
C.
1
3
4
X
P(X)
O
1/10
2
3/10
1/10
3/10
1/5
X
O
1
2
3
PX)
1/5
3/10
3/ 10
1/10
1/10
After PUBG Mobile reentered the Indian market in the form of Battlegrounds Mobile India, ByteDance may be attempting something similar with TikTok. ByteDance has applied for a new trademark having ‘TickTock’ as the wordmark with the Ministry of Commerce & Industry. Suggest a suitable promotion mix for ‘TickTock’
Suppose X and Y are jointly normal random variables. Briefly discuss bivariate Normal distribution. Your answer should include, but not limited to, the joint pdf of the bivariate normal distribution f(x, y), it's properties including, but not limited to, E(Y/X=x) and V(Y/X=x).
Explain how businesses (SMMEs) can manage the damage caused by the Covid-19 pandemic
– what strategies can they implement? What programmes and policies can you recommend as
a business management expert?
How much MgCI2 will be produced in the reaction? Mg OH2 = 58.32g/mol , HCI = 36.46/mol , MgCI2 = 95.32/mol
3. Describe the impact of the COVID-19 pandemic on business organisations (SMMEs) in South
Africa.
8. A 75% efficient cooling tower has a water entering at 45o C and wet bulb temperature of air entering at
25 oC. Find the water exit temperature of water. PLEASE EXPLAIN THE DETAILED ANSWER/SOLUTION.
ANSWER:
A. 32oC B. 30oC C. 34.34oC D. 23.44oC
7. A 6 x 5 x 4 m room has a pressure of 101 kpa and temperature of 30oC (Psat = 5 kpa). If percent
relative humidity is 65%, find the mass of vapor (RV = 0.423 KJ/kgoK).
ANSWER:
A. 0.345 kg B. 1.23 kg C. 3.04 kg D. 2.19 kg
The top-selling Amar tire is rated 70,000 KMs, which means nothing. In fact, the distance
the tires can run until they wear out is a normally distributed random variable with a mean
of 82,000 KMs and a standard deviation of 6,400 KMs.
What is the probability that a tire wears out before 70,000 KMs?
What is the probability that a tire lasts more than 100,000 KMs?
Discuss the meaning of the following concepts (and substantiate in a proper footnote reference your authorative source:)
2.1Fact
2.2 Objectivity
2.3 Subjectivity
2.4 Historical Truth
2.5 Interpretation
#339914 on Dec 2023