Answer:
(b) 19% is a parameter, 22% is a statistic.
Step-by-step explanation:
-A parameter is defined as characteristic of a population under study.
In this case , the population is all cars manufactured and the characteristic of whiteness is exhibited by 19% of them.
#A statistic is a characteristic of sample.
-In this case the sample size is 100 and the statistic is 22% of them are white.
=>A statistic is usually taken or used as a representation of the entire population.
This is quite easy it is two
Answer:The answer is (4 x -1)
Step-by-step explanation: How to solve this is tell the teacher I don’t know
Answer:
a = – 8
Step-by-step explanation:
From the question:
When P(x) = 2x³ – ax² + 4x – 4 is divided by x – 1, it gives a reminder of 10.
To obtain the value of a, we shall equate x – 1 to 0 as illustrated below:
x – 1 = 0
x = 0 + 1
x = 1
Next, we shall substitute the value of x into 2x³ – ax² + 4x – 4 and equating it to 10 as illustrated below:
2x³ – ax² + 4x – 4 = 10
x = 1
2(1)³ – a(1)² + 4(1) – 4 = 10
2 – a + 4 – 4 = 10
2 – a = 10
Collect like terms
– a = 10 – 2
– a = 8
Divide through by –1
a = – 8
Therefore, the value of a is –8.
