ECAT Statistics MCQS Probability Distributions Online Test

a-random-variable-is-also-called-3-a_-_both-28-a-29-26-amp-3-b-28-b-29-but-not-28-c-29,e-28-x-c-2-b-5-29-3-csup-3-e-2-3-c-2-fsup-3-e-3-d_-_variance,e-28-y-3-csup-3-e-2-3-c-2-fsup-3-e-29-e-2-80-93-5-be-28-y-29-5-d-3-csup-3-e-2-3-c-2-fsup-3-e-is-the-formula-2-c-used-to-compute-3-a_-_variance-of-the-random-variable,for-a-constant-k-2-c-the-variance-of-k-is-3-a_-_0,for-a-random-variable-e-2-80-98-x-e-2-80-99-e-2-88-91-p-28-x-29-is-equal-to-3-a_-_1,for-discrete-random-variable-e-2-80-98-x-e-2-80-99-2-c-the-expectation-of-x-i-e-e-28-x-29-is-equal-to-3-a_-_3-cmath-3-e-3-cmo-3-e-e-2-88-91-3-c-2-fmo-3-e-3-cmi-3-ex-3-c-2-fmi-3-e-3-cmi-3-ep-3-c-2-fmi-3-e-3-cmo-stretchy-3-d-22-false-22-3-e-28-3-c-2-fmo-3-e-3-cmi-3-ex-3-c-2-fmi-3-e-3-cmo-stretchy-3-d-22-false-22-3-e-29-3-c-2-fmo-3-e-3-c-2-fmath-3-e,hourly-temperature-recorded-by-weather-bureau-is-the-example-of-3-a_-_continuous-variable,if-a-26-amp-3-b-b-are-constants-2-c-then-var-28-a-2-bb-x-29-equal-to-3-a_-_b-2-var-28-x-29,if-x-26-amp-3-b-y-are-independent-random-variables-then-e-28-xy-29-3-d-e-2-80-a-6-3-a_-_e-28-x-29-e-28-y-29,if-x-26-amp-3-b-y-are-independent-variables-2-c-then-s-d-28-x-y-29-3-d-e-2-80-a-6-3-a_-_3-cmath-3-e-3-cmsqrt-3-e-3-cmi-3-ev-3-c-2-fmi-3-e-3-cmi-3-ea-3-c-2-fmi-3-e-3-cmi-3-er-3-c-2-fmi-3-e-3-cmo-stretchy-3-d-22-false-22-3-e-28-3-c-2-fmo-3-e-3-cmi-3-ex-3-c-2-fmi-3-e-3-cmo-stretchy-3-d-22-false-22-3-e-29-3-c-2-fmo-3-e-3-cmo-3-e-2-b-3-c-2-fmo-3-e-3-cmi-3-ev-3-c-2-fmi-3-e-3-cmi-3-ea-3-c-2-fmi-3-e-3-cmi-3-er-3-c-2-fmi-3-e-3-cmo-stretchy-3-d-22-false-22-3-e-28-3-c-2-fmo-3-e-3-cmi-3-ey-3-c-2-fmi-3-e-3-cmo-stretchy-3-d-22-false-22-3-e-29-3-c-2-fmo-3-e-3-c-2-fmsqrt-3-e-3-c-2-fmath-3-e,if-y-3-d-7-x-2-c-then-s-d-28-y-29-3-d-e-2-80-a-6-3-a_-_7-s-d-28-x-29,probability-density-function-is-the-probability-function-of-random-variable_-_continuous,the-area-of-trapezoid-is-equal-to-3-a_-_3-cmath-3-e-3-cmfrac-3-e-3-cmrow-3-e-3-cmi-3-es-3-c-2-fmi-3-e-3-cmi-3-eu-3-c-2-fmi-3-e-3-cmi-3-em-3-c-2-fmi-3-e-3-cmspace-width-3-d-22-thinmathspace-22-3-e-3-c-2-fmspace-3-e-3-cmi-3-eo-3-c-2-fmi-3-e-3-cmi-3-ef-3-c-2-fmi-3-e-3-cmspace-width-3-d-22-thinmathspace-22-3-e-3-c-2-fmspace-3-e-3-cmi-3-ep-3-c-2-fmi-3-e-3-cmi-3-ea-3-c-2-fmi-3-e-3-cmi-3-er-3-c-2-fmi-3-e-3-cmi-3-ea-3-c-2-fmi-3-e-3-cmi-3-el-3-c-2-fmi-3-e-3-cmi-3-el-3-c-2-fmi-3-e-3-cmi-3-ee-3-c-2-fmi-3-e-3-cmi-3-el-3-c-2-fmi-3-e-3-cmspace-width-3-d-22-thinmathspace-22-3-e-3-c-2-fmspace-3-e-3-cmi-3-es-3-c-2-fmi-3-e-3-cmi-3-ei-3-c-2-fmi-3-e-3-cmi-3-ed-3-c-2-fmi-3-e-3-cmi-3-ee-3-c-2-fmi-3-e-3-cmi-3-es-3-c-2-fmi-3-e-3-cmspace-width-3-d-22-thinmathspace-22-3-e-3-c-2-fmspace-3-e-3-cmi-3-ex-3-c-2-fmi-3-e-3-cmspace-width-3-d-22-thinmathspace-22-3-e-3-c-2-fmspace-3-e-3-cmi-3-eb-3-c-2-fmi-3-e-3-cmi-3-ea-3-c-2-fmi-3-e-3-cmi-3-es-3-c-2-fmi-3-e-3-cmi-3-ee-3-c-2-fmi-3-e-3-c-2-fmrow-3-e-3-cmn-3-e-2-3-c-2-fmn-3-e-3-c-2-fmfrac-3-e-3-c-2-fmath-3-e,the-probability-density-function-p-28-x-29-cannot-exceed-3-a_-_one,the-properties-of-discrete-probability-distribution-are-3-a_-_3-cmath-3-e-3-cmo-3-e-e-2-88-91-3-c-2-fmo-3-e-3-cmi-3-ep-3-c-2-fmi-3-e-3-cmo-stretchy-3-d-22-false-22-3-e-28-3-c-2-fmo-3-e-3-cmi-3-ex-3-c-2-fmi-3-e-3-cmo-stretchy-3-d-22-false-22-3-e-29-3-c-2-fmo-3-e-3-cmo-3-e-3-d-3-c-2-fmo-3-e-3-cmn-3-e-1-3-c-2-fmn-3-e-3-cmspace-width-3-d-22-thinmathspace-22-3-e-3-c-2-fmspace-3-e-3-cmi-mathvariant-3-d-22-normal-22-3-e-26-amp-3-b-3-c-2-fmi-3-e-3-cmspace-width-3-d-22-thinmathspace-22-3-e-3-c-2-fmspace-3-e-3-cmn-3-e-0-3-c-2-fmn-3-e-3-cmo-3-e-e-2-89-a-4-3-c-2-fmo-3-e-3-cmi-3-ep-3-c-2-fmi-3-e-3-cmo-stretchy-3-d-22-false-22-3-e-28-3-c-2-fmo-3-e-3-cmi-3-ex-3-c-2-fmi-3-e-3-cmo-stretchy-3-d-22-false-22-3-e-29-3-c-2-fmo-3-e-3-cmo-3-e-e-2-89-a-4-3-c-2-fmo-3-e-3-cmn-3-e-1-3-c-2-fmn-3-e-3-c-2-fmath-3-e,var-28-k-y-29-3-d-e-2-80-a-6-3-a_-_k-2-var-28-y-29,what-will-be-the-value-of-k-if-the-probability-distribution-of-a-random-variable-is-given-3-a-3-cbr-3-e-2-c-2-c-2-c-2-c-2-c-2-c-2-c-2-c-2-c-2-c-2-c-2-c-2-c-2-c-2-c-2-c-3-ctable-align-3-d-22-left-22-cellspacing-3-d-220-22-class-3-d-22-mso-table-grid-22-3-e-3-ctbody-3-e-3-ctr-3-e-3-ctd-style-3-d-22-vertical-align-3-atop-22-3-e-y-3-c-2-ftd-3-e-3-ctd-style-3-d-22-vertical-align-3-atop-22-3-e-0-3-c-2-ftd-3-e-3-ctd-style-3-d-22-vertical-align-3-atop-22-3-e-2-3-c-2-ftd-3-e-3-ctd-style-3-d-22-vertical-align-3-atop-22-3-e-3-3-c-2-ftd-3-e-3-c-2-ftr-3-e-3-ctr-3-e-3-ctd-style-3-d-22-vertical-align-3-atop-22-3-e-p-28-y-29-3-c-2-ftd-3-e-3-ctd-style-3-d-22-vertical-align-3-atop-22-3-e-k-3-c-2-ftd-3-e-3-ctd-style-3-d-22-vertical-align-3-atop-22-3-e-3-k-3-c-2-ftd-3-e-3-ctd-style-3-d-22-vertical-align-3-atop-22-3-e-4-k-3-c-2-ftd-3-e-3-c-2-ftr-3-e-3-c-2-ftbody-3-e-3-c-2-ftable-3-e-2-c-3-cb-3-e-3-c-2-fb-3-e_-_1-2-f-8,which-of-the-following-is-not-the-example-of-discrete-random-variable-3-a_-_the-amount-of-milk-produced-by-a-cow,which-of-the-following-is-suitable-for-discrete-probability-distribution-3-a_-_probability-histogram