Answer:
- Listing of 15 students
- Assignment of a sequential number to each student.
- The figured out sample size, i.e., 2.
- Selected sample using sampling frame 15 from Step 2 and your sample size from Step 3, i.e., 2
Step-by-step explanation:
Random sampling is a piece of the sampling method where each example has an equivalent likelihood of being picked. An example picked randomly is intended to be an impartial portrayal of the all out populace. On the off chance that for certain reasons, the example doesn't speak to the populace, the variety is known as a sampling mistake. A random example is an example that is picked randomly. It could be all the more precisely called a randomly picked test. Random examples are utilized to stay away from inclination and other undesirable impacts. Random sampling is probably the least complex type of gathering information from the all out populace. Under random sampling, every individual from the subset conveys an equivalent chance of being picked as a piece of the sampling procedure.
Answer:
1. Disagree, this means 5a-10
2. 20 more than n
3.75 divided among x students=y candies per student
4.One less than X is Y
5.4x+10
4x-10
2x+10
2*(x+10)
Answer:
(A) No
(B) Yes
Step-by-step explanation:
(A) Using centimeters for example, it is not possible to create a closed or full triangle with side lengths 1cm, 5cm and 3cm. [See attachment for illustration]
(B) It is possible to create a triangle of side lengths 3cm, 4cm and 5cm. [See attachment also]
The Pythagoras Rule also applies in this case.
The sum of the squares of the lengths of the 2 shorter sides (the opposite side and the adjacent side) is equal to the square of the longest side (the hypotenuse).
(3×3) + (4×4) = (5×5)
9 + 16 = 25
Answer:
The answer is 84.
Step-by-step explanation:
The given equation is
4x*2 + 2x -5 = 0
Here a= 4, b= 2, c= -5
Since Discriminant= b*2 -4ac
Putting values
Discriminant= (2)*2 - 4(4)(-5)
= 4 + 80
= 84
Since our Discriminant(84) is >0 and is not a perfect square so the roots of the given equation are unequal and irrational(real).
Solution:
Probability of a basketball player scoring on any shot = .75
Probability of a basketball player does not hit on the right point = 1-0.75=0.25
Probability that it will take her more than four shots to first scores on a shot = F F F F S +F F F F S S+ F F F F S S S+ F F F F S S S S F F F F S SS SS+...........
= F F F F S[1+S+S S+S S S+ S S S S+.......upto infinity]
= F F F F S [],→→→[ sum to infinity of a geometric progression a+a r+ a r²+ a r³,... .....= [], ]
= (0.25) × (0.25) ×(0.25)× (0.25)×(0.75)×[],
= 0.0625 × 0.25×0.75
=0.01171875
= 0.0118 (Approx)→→→→Option (d) is correct .