: Which of the following statements are correct? Choose all correct answer. a.Group of answer choices Standard normal distribution has mean 0 and variance 1. b. Normal distribution curve has its points of inflection at x =   . c. Normal distribution has density function n ( x ;  ,  ) = (1 / 2   )e ^( ( x   )^ 2 /2 ) d. Normal distribution curve is symmetric. a) Find the area under the standard normal distribution curve to the right of z = 0.28 b) Find the area under the standard normal distribution curve to the left of z = - 1.23 c) Find the area under the standard normal distribution curve for z between 1.51 and 2.32 d) Find the area under the standard normal distribution curve for z between -0.44 and -0.61 What is the role of the potato extract in the decomposition of hydrogen peroxide in water?: 

Acts activating the decomposition process because it contains an enzyme called "catalase", which catalyzes the generation of molecular oxygen from hydrogen peroxide increasing the activation energy of the reaction.

Acts activating the decomposition process because it contains an enzyme called "catalase", which catalyzed the generation of molecular oxygen and molecular hydrogen from H2O2 in water, reducing the activation energy of the reaction.

Acts activating the decomposition process because it contains an enzyme called "catalase", which catalyzed the generation of molecular oxygen from hydrogen peroxide in water, reducing the activation energy of the reaction. Find the partial fraction decomposition for the expression. Show system used to solve for A and B in the partial fraction

decomposition process.

(- 31x - 93)/ (2x^2 + 12x + 18)