Answer:
(a) 20.9%
(b) 60.8%
(c) 6.3%
Step-by-step explanation:
Use binomial probability.
P = nCr pʳ qⁿ⁻ʳ
(a)
P = ₁₀C₅ (0.59)⁵ (1−0.59)¹⁰⁻⁵
P = 0.209
(b)
P = ₁₀C₆ (0.59)⁶ (1−0.59)¹⁰⁻⁶
+ ₁₀C₇ (0.59)⁷ (1−0.59)¹⁰⁻⁷
+ ₁₀C₈ (0.59)⁸ (1−0.59)¹⁰⁻⁸
+ ₁₀C₉ (0.59)⁹ (1−0.59)¹⁰⁻⁹
+ ₁₀C₁₀ (0.59)¹⁰ (1−0.59)¹⁰⁻¹⁰
P = 0.608
(c)
P = ₁₀C₀ (0.59)⁰ (1−0.59)¹⁰⁻⁰
+ ₁₀C₁ (0.59)¹ (1−0.59)¹⁰⁻¹
+ ₁₀C₂ (0.59)² (1−0.59)¹⁰⁻²
+ ₁₀C₃ (0.59)³ (1−0.59)¹⁰⁻³
P = 0.063
Answer:
x - 4
Step-by-step explanation:
Answer: 3/2
Step-by-step explanation: the answer would be 3/2 as an improper fraction or 1 and 1/2 as a mixed number
They got it wrong it is actually k=8
Here, Add both the equations in order to eliminate y,
5x = 10
x = 10/5
x = 2
Now, substitute it in 1st equation,
8(2) - 4y = -32
-4y= -32- 16
y = -48/-4
y = 12
In short, Your Answer would be (2, 12)
Hope this helps!
