5 times 3 is 15 and 2 times 4 is 8, so:
15-8
= 7
Linear algebra is a branch of algebra that deals with the study of linear functions and their various representations. It is very similar to physics as deeply covers matrices and vectors.
Intermediate algebra is Algebra II. Some places even call it Algebra II. Algebra II briefly overviews various types of functions, like quadratic, linear, exponential, logarithmic, sine and cosine, tan, etc.
Linear algebra is specifically designed to cover linear functions.
Intermediate algebra or algebra II overviews all the types of functions.
Both are easy and fun. I suggest you take both. lol
Answer:
E
Step-by-step explanation:
Solution:-
- We are to investigate the confidence interval of 95% for the population mean of walking times from Fretwell Building to the college of education building.
- The survey team took a sample of size n = 24 students and obtained the following results:
Sample mean ( x^ ) = 12.3 mins
Sample standard deviation ( s ) = 3.2 mins
- The sample taken was random and independent. We can assume normality of the sample.
- First we compute the critical value for the statistics.
- The z-distribution is a function of two inputs as follows:
- Significance Level ( α / 2 ) = ( 1 - CI ) / 2 = 0.05/2 = 0.025
Compute: z-critical = z_0.025 = +/- 1.96
- The confidence interval for the population mean ( u ) of walking times is given below:
[ x^ - z-critical*s / √n , x^ + z-critical*s / √n ]
Answer: [ 12.3 - 1.96*3.2 / √24 , 12.3 + 1.96*3.2 / √24 ]