Answer:
a) 0.0821
b) 0.0111
c) 0.0041
Step-by-step explanation:
Exponential distribution:
The exponential probability distribution, with mean m, is described by the following equation:
In which 
is the decay parameter.
The probability that x is lower or equal to a is given by:
Which has the following solution:
Either it lasts more 5 years or less, or it survives more than 5 years. The sum of the probabilities of these events is decimal 1. So
In all 3 cases, we want P(X > 5). So
In which
(a) lambda=.5
(b) lambda=0.9
(c) lambda=1.1
Answer:
maybe there's a typo, that dot usually represents the multiplication, and I got 5.52
Answer:
1 student.
Step-by-step explanation:
Two thirds of the students preferred chocolate ice cream:
2/3 of 36 is 24 students.
One fourth of the students preferred strawberry ice cream:
1/4 of 36 is 9.
9+24= 35
<em>--------------------------------------------------------------------------------------</em>
36-35=1
Only one student preferred vanilla ice-cream.
Answer:
2a + 4c = 95
3a +7c =155
Step-by-step explanation:
2a + 4c = 95
3a +7c =155
Answer:
12
Step-by-step explanation:
From the above question, we ate told that:
Becky needs to put 4 cups of flour into her bread maker to make one loaf of bread.
The size of her measuring cup = 1/3 cup
The number of 1/3 cups of flour she will need to make a loaf of bread is calculated as:
4 cups of flour ÷ 1/3 cup of flour
= 4 cups of flour × 3/1 cup of flour
= 12
