Answer:
C
Step-by-step explanation:
Mux= np
sigmax=
Mean = 50(.65)
Standard Deviation =
A farmer has 32 goats and some cows in his farm. If the number of goats is 4/7 of the number of animals in total then how many c
1 answer:
Answer:
Goats: 32
Cows: 24
Animals: 56
Step-by-step explanation:
Using a proportion, equivalent ratios, you can use the number of goats to find the total number of animals and then the number of cows:
, where 'x' represents the total number of animals
Cross-multiply: 4x = (32)(7) or 4x = 224
Divide: 4x/4 = 224/4 or x = 56
Total number of animals = 56
Number of goats: 32
Number of cows: 56 - 32 = 24
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Answer:
(22.12, 27.48)
Step-by-step explanation:
Given : Significance level :
Sample size : n= 8 , which is a small sample (n<30), so we use t-test.
Critical values using t-distribution:
Sample mean :
Standard deviation :
The confidence interval for population means is given by :-
i.e.
Hence, the 95% confidence interval, assuming the times are normally distributed.= (22.12, 27.48)
Answer:
The % of of acid in solution = 63.88 ml
Step-by-step explanation:
The solution of acid and water = 351 milliliters
The % of of acid in solution = 18.2% of 351 ml
Or, The % of of acid in solution = × 351 ml
Or, The % of of acid in solution = 63.882 ml
Hence ,The % of of acid in solution = 63.88 ml Answer