The ratio of boys to girls in the chess club is 4 : 3. If there are 48 boys in the club, how many students are in the chess club
1 answer:
Answer:
84 students
Step-by-step explanation:
We know that the ratio of boys to girls is 4 : 3, and we know that the actual number of boys is 48, so let's set up a proportion:
, where x is the number of girls in the club
Cross-multiply:
4x = 48 * 3 = 144
x = 144/4 = 36
Thus, there are 36 girls in the club.
Don't forget to check back with the question! It's asking for the total number of students, so we need to add 36 to 48:
36 + 48 = 84
Therefore, our answer is 84 students.
<em>~ an aesthetics lover</em>
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Answer:
The value of the parameter is λ is 0.03692
Step-by-step explanation:
Consider the provided function.
for −∞ < x < ∞.
It is given that standard deviation is given as 38.3 km.
Now we need to calculate the value of parameter λ.
The general formula for the probability density function of the double exponential distribution is:
Where μ is the location parameter and β is the scale parameter.
Compare the provided equation with the above formula we get.
and μ = 0.
Standard deviation = √2β
Now substitute the value of β in .
Hence, the value of the parameter is λ is 0.03692