export declare function mean(nums: number[]): number;
export declare function sum(nums: number[]): number;
export declare function median(nums: number[]): number;
export declare function variance(nums: number[]): number;
export declare function stdev(nums: number[]): number;
export declare function max(nums: number[]): number;
export declare function min(nums: number[]): number;
export declare function count(nums: any[]): number;
export declare function countTruly(nums: any[]): number;
export declare function distinctCount(datas: any[]): number;