Ifthe marks of a class is 1 2 3 4 5 6 7 8 9 10 and the frequency is 213 y 413 102 what is the value of y​

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a. the residual plot for model 1 has a random pattern and is a good fit for the data.

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.