Answer: 0.1340
Step-by-step explanation:
The binomial distribution formula is given by :-
, where P(x) is the probability of x successes out of n trials, p is the probability of success on a particular trial.
Given : The number of employees over 50 years of age =7
The probability of employees over 50 years of age = ![\dfrac{7}{7+15}=0.318](https://tex.z-dn.net/?f=%5Cdfrac%7B7%7D%7B7%2B15%7D%3D0.318)
Number of dismissed employees : n= 9
Now, the required probability will be :
![P(x =1)=^{9}C_1(0.318)^{1}(1-0.318)^{9-1}\\\\=(9)(0.318)(1-0.318)^{8}=0.133950588714\approx0.1340](https://tex.z-dn.net/?f=P%28x%20%3D1%29%3D%5E%7B9%7DC_1%280.318%29%5E%7B1%7D%281-0.318%29%5E%7B9-1%7D%5C%5C%5C%5C%3D%289%29%280.318%29%281-0.318%29%5E%7B8%7D%3D0.133950588714%5Capprox0.1340)
Thus, the probability that exactly 1 employee was over 50 = 0.1340
Answer:(5•X)+9=11
Step-by-step explanation:
Answer:
She can feed her cats for 4 days.
Step-by-step explanation:
Since each cat eats a tin of can food each day, that is 2 per day. 2x4=8 which means there will be one tin left over.