Ratios that are equivalent to 3:11 are 6:22 and 9:33.
Hope this helps!
Answer:
-1
Step-by-step explanation:
Answer:
- P(x < 84) = 0.3085 or approximately 31%
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<em>Hello to you from Brainly team!</em>
<h3>Given</h3>
- Mean grade μ = 86,
- Standard deviation σ = 4,
- Grade limit x = 84.
<h3>To find </h3>
- Probability of that a randomly selected grade is less than 84 or P(x < 84).
<h3>Solution</h3>
Find z-score using relevant equation:
Substitute values and calculate:
Using the z-score table find the corresponding P- value.
- P(x < 84) = 0.30854 or approximately 31%
Answer:
13
Step-by-step explanation:
<h3>13 the answer. that correct or what</h3>
31-21=15
Answer: 15m
Answer check: 36+15=51✅
